Photographer: Dirk Gillissen

dr. A.L. (Anna) Watts


  • Faculty of Science
    Anton Pannekoek Institute of Astronomy
  • Visiting address
    Science Park A
    Science Park 904  Room number: C4.134
  • Postal address:
    Postbus  94249
    1090 GE  Amsterdam
  • A.L.Watts@uva.nl
    T: 0205258495
    T: 0205257491

Profile

Anna Watts is Associate Professor at the University of Amsterdam.  After completing her PhD in the General Relativity group at the University of Southampton in 2004, she held postdoctoral fellowships at NASA’s Goddard Space Flight Center (USA) and the Max Planck Institute for Astrophysics (Germany) before moving to Amsterdam in 2008.  She is an NWO Vidi and ERC Starter Grant Laureate, and is Secretary of the Steering Committee for International Astronomical Union Division D (High Energy Phenomena and Fundamental Physics). 

Research and teaching

Anna studies violent dynamical events on neutron stars:  thermonuclear explosions, starquakes, and magnetic flares.  Her goal is to understand the physics that drives these processes, and to use them to study ultra-strong magnetic fields and the nature of the supranuclear density matter that exists in the cores of neutron stars.  Her research programme sits at the boundary of theoretical physics and astrophysics, and she teaches Masters courses in Fluid Dynamics and on Stellar Structure and Evolution.  She is very actively involved in the development of future high-energy space telescopes, and co-Chairs the Dense Matter Science Working Group for the proposed Enhanced X-ray Timing and Polarization (eXTP) telescope. 

Keywords

Neutron stars, thermonuclear bursts, magnetar bursts, dense matter.

2018

  • Bilous, A. V., Watts, A. L., Galloway, D. K., & in 't Zand, J. J. M. (2018). A Millisecond Oscillation in the Bursting X-Ray Flux of SAX J1810.8-2609. Astrophysical Journal Letters, 862, [L4]. DOI: 10.3847/2041-8213/aad09c 

2017

  • Göğüş, E., Lin, L., Roberts, O. J., Chakraborty, M., Kaneko, Y., Gill, R., ... Younes, G. (2017). Burst and Outburst Characteristics of Magnetar 4U 0142+61. Astrophysical Journal, 835(1), [68]. DOI: 10.3847/1538-4357/835/1/68  [details] 
  • Ootes, L. S., Watts, A. L., Galloway, D. K., & Wijnands, R. (2017). The Accretion Rate Dependence of Burst Oscillation Amplitude. Astrophysical Journal, 834(1), 21. DOI: 10.3847/1538-4357/834/1/21 
  • Cavecchi, Y., Watts, A. L., & Galloway, D. K. (2017). On the Dependence of the X-Ray Burst Rate on Accretion and Spin Rate. Astrophysical Journal, 851(1), [1]. DOI: 10.3847/1538-4357/aa9897  [details] 
  • Elenbaas, C., Huppenkothen, D., Omand, C., Watts, A. L., Bissaldi, E., Caiazzo, I., & Heyl, J. (2017). Magnetar giant flare high-energy emission. Monthly Notices of the Royal Astronomical Society, 471(2), 1856-1872. DOI: 10.1093/mnras/stx1727  [details] 

2016

  • Göğüş, E., Lin, L., Kaneko, Y., Kouveliotou, C., Watts, A. L., Chakraborty, M., ... van der Horst, A. J. (2016). Magnetar-like X-Ray Bursts from a Rotation-powered Pulsar, PSR J1119-6127. Astrophysical Journal Letters, 829(2), [L25]. DOI: 10.3847/2041-8205/829/2/L25  [details] 
  • van Putten, T., Watts, A. L., Baring, M. G., & Wijers, R. A. M. J. (2016). Radiative transfer simulations of magnetar flare beaming. Monthly Notices of the Royal Astronomical Society, 461(1), 877-891. DOI: 10.1093/mnras/stw1279 
  • Younes, G., Kouveliotou, C., Kargaltsev, O., Gill, R., Granot, J., Watts, A. L., ... Roberts, O. J. (2016). The Wind Nebula around Magnetar Swift J1834.9-0846. Astrophysical Journal, 824(2), [138]. DOI: 10.3847/0004-637X/824/2/138  [details] 
  • Cavecchi, Y., Levin, Y., Watts, A. L., & Braithwaite, J. (2016). Fast and slow magnetic deflagration fronts in type I X-ray bursts. Monthly Notices of the Royal Astronomical Society, 459(2), 1259-1275. DOI: 10.1093/mnras/stw728 
  • Elenbaas, C., Watts, A. L., Turolla, R., & Heyl, J. S. (2016). The impulsive phase of magnetar giant flares: assessing linear tearing as the trigger mechanism. Monthly Notices of the Royal Astronomical Society, 456(3), 3282-3295. DOI: 10.1093/mnras/stv2860 
  • Watts, A. L., Andersson, N., Chakrabarty, D., Feroci, M., Hebeler, K., Israel, G., ... van der Klis, M. (2016). Colloquium: Measuring the neutron star equation of state using x-ray timing. Reviews of Modern Physics, 88(2), [21001]. DOI: 10.1103/RevModPhys.88.021001  [details] 

2015

  • Antonopoulou, D., Weltevrede, P., Espinoza, C. M., Watts, A. L., Johnston, S., Shannon, R. M., & Kerr, M. (2015). The unusual glitch recoveries of the high-magnetic-field pulsar J1119-6127. Monthly Notices of the Royal Astronomical Society, 447(4), 3924-3935. DOI: 10.1093/mnras/stu2710  [details] 
  • Cavecchi, Y., Watts, A. L., Levin, Y., & Braithwaite, J. (2015). Rotational effects in thermonuclear type I bursts: equatorial crossing and directionality of flame spreading. Monthly Notices of the Royal Astronomical Society, 448(1), 445-455. DOI: 10.1093/mnras/stu2764  [details] 
  • Huppenkothen, D., Brewer, B. J., Hogg, D. W., Murray, I., Frean, M., Elenbaas, C., ... Kouveliotou, C. (2015). Dissecting Magnetar Variability with Bayesian Hierarchical Models. Astrophysical Journal, 810(1), [66]. DOI: 10.1088/0004-637X/810/1/66  [details] 
  • Lander, S. K., Andersson, N., Antonopoulou, D., & Watts, A. L. (2015). Magnetically driven crustquakes in neutron stars. Monthly Notices of the Royal Astronomical Society, 449(2), 2047-2058. DOI: 10.1093/mnras/stv432  [details] 
  • Watts, A., Xu, R., Espinoza, C., Andersson, N., Antoniadis, J., Antonopoulou, D., ... Stappers, B. (2015). Probing the neutron star interior and the Equation of State of cold dense matter with the SKA. Proceedings of science, 043. [details] 
  • Collazzi, A. C., Kouveliotou, C., van der Horst, A. J., Younes, G. A., Kaneko, Y., Göğüş, E., ... Wijers, R. A. M. J. (2015). The Five Year Fermi/GBM Magnetar Burst Catalog. The Astrophysical Journal. Supplement Series, 218(1), [11]. DOI: 10.1088/0067-0049/218/1/11  [details] 
  • Turolla, R., Zane, S., & Watts, A. L. (2015). Magnetars: the physics behind observations. A review. Reports on Progress in Physics, 78(11), [116901]. DOI: 10.1088/0034-4885/78/11/116901  [details] 

2014

  • Bagnoli, T., in 't Zand, J. J. M., Patruno, A., & Watts, A. L. (2014). Double-peaked thermonuclear bursts at the soft-hard state transition in the Rapid Burster. Monthly Notices of the Royal Astronomical Society, 437(3), 2790-2801. DOI: 10.1093/mnras/stt2088  [details] 
  • Huppenkothen, D., D'Angelo, C., Watts, A. L., Heil, L. M., van der Klis, M., van der Horst, A. J., ... Younes, G. (2014). Quasi-periodic Oscillations in Short Recurring Bursts of the Soft Gamma Repeater J1550-5418. Astrophysical Journal, 787(2), [128]. DOI: 10.1088/0004-637X/787/2/128  [details] 
  • Huppenkothen, D., Heil, L. M., Watts, A. L., & Göğüş, E. (2014). Quasi-periodic Oscillations in Short Recurring Bursts of Magnetars SGR 1806--20 and SGR 1900+14 Observed with RXTE. Astrophysical Journal, 795(2), [114]. DOI: 10.1088/0004-637X/795/2/114  [details] 
  • Huppenkothen, D., Watts, A. L., & Levin, Y. (2014). Intermittency and Lifetime of the 625 Hz Quasi-periodic Oscillation in the 2004 Hyperflare from the Magnetar SGR 1806-20 as Evidence for Magnetic Coupling between the Crust and the Core. Astrophysical Journal, 793(2), 129. DOI: 10.1088/0004-637X/793/2/129  [details] 
  • Bozzo, E., Stella, L., van der Klis, M., Watts, A., Barret, D., Wilms, J., ... Feroci, M. (2014). The LOFT mission: new perspectives in the research field of (accreting) compact objects. EPJ Web of Conferences, 64, 09002. DOI: 10.1051/epjconf/20136409002  [details] 
  • Espinoza, C. M., Antonopoulou, D., Stappers, B. W., Watts, A., & Lyne, A. G. (2014). Neutron star glitches have a substantial minimum size. Monthly Notices of the Royal Astronomical Society, 440(3), 2755-2762. DOI: 10.1093/mnras/stu395  [details] 
  • Feroci, M., et al., U., van der Klis, M., Watts, A., Altamirano, D., Ingram, A., ... Wijnands, R. (2014). The Large Observatory for x-ray Timing. Proceedings of SPIE, the International Society for Optical Engineering, 9144, 91442T. DOI: 10.1117/12.2055913  [details] 
  • Younes, G., Kouveliotou, C., van der Horst, A. J., Baring, M. G., Granot, J., Watts, A. L., ... Wijers, R. A. M. J. (2014). Time Resolved Spectroscopy of SGR J1550-5418 Bursts Detected with Fermi/Gamma-Ray Burst Monitor. Astrophysical Journal, 785(1), [52]. DOI: 10.1088/0004-637X/785/1/52  [details] 

2013

  • Bagnoli, T., in 't Zand, J. J. M., Galloway, D. K., & Watts, A. (2013). Indications for a slow rotator in the Rapid Burster from its thermonuclear bursting behaviour. Monthly Notices of the Royal Astronomical Society, 431(2), 1947-1955. DOI: 10.1093/mnras/stt312  [details] 
  • Cavecchi, Y., Watts, A., Braithwaite, J., & Levin, Y. (2013). Flame propagation on the surfaces of rapidly rotating neutron stars during Type I X-ray bursts. Monthly Notices of the Royal Astronomical Society, 434(4), 3526-3541. DOI: 10.1093/mnras/stt1273  [details] 
  • Huppenkothen, D., Watts, A. L., Uttley, P., van der Horst, A. J., van der Klis, M., Kouveliotou, C., ... Finger, M. H. (2013). Quasi-periodic Oscillations and Broadband Variability in Short Magnetar Bursts. Astrophysical Journal, 768(1), [87]. DOI: 10.1088/0004-637X/768/1/87  [details] 
  • van Putten, T., Watts, A., d' Angelo, C. R., Baring, M. G., & Kouveliotou, C. (2013). Models of hydrostatic magnetar atmospheres at high luminosities. Monthly Notices of the Royal Astronomical Society, 434(2), 1398-1410. DOI: 10.1093/mnras/stt1093  [details] 

2012

  • Lin, L., Göğüş, E., Baring, M. G., Granot, J., Kouveliotou, C., Kaneko, Y., ... Gehrels, N. (2012). Broadband Spectral Investigations of SGR J1550-5418 Bursts. Astrophysical Journal, 756(1), 54. DOI: 10.1088/0004-637X/756/1/54  [details] 
  • Watts, A. L. (2012). Thermonuclear Burst Oscillations. Annual Review of Astronomy and Astrophysics, 50, 609-640. DOI: 10.1146/annurev-astro-040312-132617  [details] 
  • d' Angelo, C. R., & Watts, A. L. (2012). Observable quasi-periodic oscillations produced by steep pulse profiles in magnetar flares. Astrophysical Journal Letters, 751(2), L41. DOI: 10.1088/2041-8205/751/2/L41  [details] 
  • van der Horst, A. J., Kouveliotou, C., Gorgone, N. M., Kaneko, Y., Baring, M. G., Guiriec, S., ... Wijers, R. A. M. J. (2012). SGR J1550-5418 Bursts Detected with the Fermi Gamma-Ray Burst Monitor during its Most Prolific Activity. Astrophysical Journal, 749(2), [122]. DOI: 10.1088/0004-637X/749/2/122  [details] 
  • Feroci, M., Stella, L., van der Klis, M., Courvoisier, T. J. L., Hernanz, M., Hudec, R., ... Ziolkowski, J. (2012). The Large Observatory for X-ray Timing (LOFT). Experimental Astronomy, 34(2), 415-444. DOI: 10.1007/s10686-011-9237-2  [details] 
  • von Kienlin, A., Gruber, D., Kouveliotou, C., Granot, J., Baring, M. G., Göğüş, E., ... Rau, A. (2012). Detection of Spectral Evolution in the Bursts Emitted during the 2008-2009 Active Episode of SGR J1550-5418. Astrophysical Journal, 755(2), 150. DOI: 10.1088/0004-637X/755/2/150  [details] 

2011

  • Altamirano, D., Cavecchi, Y., Patruno, A., Watts, A., Linares, M., Degenaar, N., ... Wijnands, R. (2011). Discovery of an Accreting Millisecond Pulsar in the Eclipsing Binary System SWIFT J1749.4-2807. Astrophysical Journal Letters, 727(1), [L18]. DOI: 10.1088/2041-8205/727/1/L18  [details] 
  • Cavecchi, Y., Patruno, A., Haskell, B., Watts, A. L., Levin, Y., Linares Alegret, M., ... van der Klis, M. (2011). Implications of burst oscillations from the slowly rotating accreting pulsar IGR J17480-2446 in the globular cluster Terzan 5. Astrophysical Journal Letters, 740. DOI: 10.1088/2041-8205/740/1/L8  [details] 
  • Lin, L., Kouveliotou, C., Baring, M. G., van der Horst, A. J., Guiriec, S., Woods, P. M., ... Wilson-Hodge, C. (2011). Fermi/Gamma-ray burst monitor observations of SGR J0501+4516 bursts. Astrophysical Journal, 739(2). DOI: 10.1088/0004-637X/739/2/87  [details] 
  • Lin, L., Kouveliotou, C., Göğüş, E., van der Horst, A. J., Watts, A. L., Baring, M. G., ... Zhang, S. N. (2011). Burst and persistent emission properties during the recent active episode of the anomalous X-ray pulsar 1E 1841-045. Astrophysical Journal Letters, 740(1). DOI: 10.1088/2041-8205/740/1/L16  [details] 
  • Wilkinson, T., Patruno, A., Watts, A., & Uttley, P. (2011). Pulse-phase-resolved spectroscopy of continuum and reflection in SAX J1808.4-3658. Monthly Notices of the Royal Astronomical Society, 410(3), 1513-1520. DOI: 10.1111/j.1365-2966.2010.17532.x  [details] 

2010

  • Altamirano, D., Watts, A., Linares, M., Markwardt, C. B., Strohmayer, T., & Patruno, A. (2010). Type I X-ray bursts and burst oscillations in the accreting millisecond X-ray pulsar IGR J17511−3057. Monthly Notices of the Royal Astronomical Society, 409(3), 1136-1145. DOI: 10.1111/j.1365-2966.2010.17369.x  [details] 
  • Linares, M., Watts, A., Altamirano, D., Soleri, P., Degenaar, N., Yang, Y., ... van der Klis, M. (2010). The return of the bursts: thermonuclear flashes from Circinus X-1. Astrophysical Journal Letters, 719(1), L84-L89. DOI: 10.1088/2041-8205/719/1/L84  [details] 
  • Watts, A. L., Kouveliotou, C., van der Horst, A. J., Göğüş, E., Kaneko, Y., van der Klis, M., ... Baring, M. G. (2010). Photospheric radius expansion during magnetar bursts. Astrophysical Journal, 719(1), 190-200. DOI: 10.1088/0004-637X/719/1/190  [details] 
  • van der Horst, A. J., Connaughton, V., Kouveliotou, C., Göğüş, E., Kaneko, Y., Wachter, S., ... Wilson-Hodge, C. A. (2010). Discovery of a new soft gamma repeater: SGR J0418 + 5729. Astrophysical Journal Letters, 711(1), L1-L6. DOI: 10.1088/2041-8205/711/1/L1  [details] 
  • Kaneko, Y., Göğüş, E., Kouveliotou, C., Granot, J., Ramirez-Ruiz, E., van der Horst, A. J., ... Woods, P. M. (2010). Magnetar twists: Fermi/Gamma-ray Burst Monitor detection of SGR J1550-5418. Astrophysical Journal, 710(2), 1335-1342. DOI: 10.1088/0004-637X/710/2/1335  [details] 

2009

  • Linares, M., Watts, A. L., Wijnands, R., Soleri, P., Degenaar, N., Curran, P. A., ... van der Klis, M. (2009). The Swift capture of a long X-ray burst from XTE J1701−407. Monthly Notices of the Royal Astronomical Society. Letters, 392(1), L11-L15. DOI: 10.1111/j.1745-3933.2008.00572.x  [details] 
  • Watts, A. L., & Krishnan, B. (2009). Detecting gravitational waves from accreting neutron stars. Advances in Space Research, 43(7), 1049-1054. DOI: 10.1016/j.asr.2009.01.006  [details] 
  • Watts, A. L., Altamirano, D., Linares, M., Patruno, A., Casella, P., Cavecchi, Y., ... Wijnands, R. (2009). Discovery of burst oscillations in the intermittent accretion-powered millisecond pulsar HETE J1900.1-2455. Astrophysical Journal Letters, 698(2), L174-L177. DOI: 10.1088/0004-637X/698/2/L174  [details] 
  • Hartman, J. M., Watts, A. L., & Chakrabarty, D. (2009). The luminosity and energy dependence of pulse phase lags in the accretion-powered millisecond pulsar SAX J1808.4-3658. Astrophysical Journal, 697(2), 2102-2107. DOI: 10.1088/0004-637X/697/2/2102  [details] 
  • Steiner, A. W., & Watts, A. L. (2009). Constraints on neutron star crusts from oscillations in giant flares. Physical Review Letters, 103(18), 181101. DOI: 10.1103/PhysRevLett.103.181101  [details] 

2008

  • Watts, A. L. (2008). Lighthouses with two lights: Burst oscillations from the accretion-powered millisecond pulsars. AIP Conference Proceedings, 1068, 199-206. DOI: 10.1063/1.3031193  [details] 
  • Watts, A. L. (2008). Type I bursts and burst oscillations. In 37th COSPAR Scientific Assembly (Vol. 37, pp. 3440)
  • Watts, A. L., Bildsten, L., Krishnan, B., & Schutz, B. (2008). Detection of gravitational waves from accreting neutron stars. In 37th COSPAR Scientific Assembly (Vol. 37, pp. 3441)
  • Watts, A. L., Krishnan, B., Bildsten, L., & Schutz, B. F. (2008). Detecting gravitational wave emission from the known accreting neutron stars. Monthly Notices of the Royal Astronomical Society, 389(2), 839-868. DOI: 10.1111/j.1365-2966.2008.13594.x  [details] 
  • Watts, A. L., Patruno, A., & van der Klis, M. (2008). Coherence of burst oscillations and accretion-powered pulsations in the accreting millisecond pulsar XTE J1814-338. Astrophysical Journal Letters, 688(1), L37-L40. DOI: 10.1086/594365  [details] 
  • Maurer, I., & Watts, A. L. (2008). Ignition latitude and the shape of Type I X-ray bursts. Monthly Notices of the Royal Astronomical Society, 383, 387-398. DOI: 10.1111/j.1365-2966.2007.12558.x 

2017

  • Bogdanov, S., Arzoumanian, Z., Chakrabarty, D., Guillot, S., Kust Harding, A., Ho, W. C. G., ... Gendreau, K. (2017). Neutron Star Dense Matter Equation of State Constraints with NICER.

2016

  • Feroci, M., Bozzo, E., Brandt, S., Hernanz, M., van der Klis, M., Liu, L-P., ... Zwart, F. (2016). The LOFT mission concept: a status update. Proceedings of SPIE, the International Society for Optical Engineering, 9905, [99051R]. DOI: 10.1117/12.2233161 
  • Wilson-Hodge, C. A., Ray, P. S., Chakrabarty, D., Feroci, M., Alvarez, L., Baysinger, M., ... Zane, S. (2016). Large Observatory for x-ray Timing (LOFT-P): a Probe-class mission concept study. Proceedings of SPIE, the International Society for Optical Engineering, 9905, [99054Y]. DOI: 10.1117/12.2232944 
  • Zhang, S. N., Feroci, M., Santangelo, A., Dong, Y. W., Feng, H., Lu, F. J., ... Watts, A. (2016). eXTP: Enhanced X-ray Timing and Polarization mission. Proceedings of SPIE, the International Society for Optical Engineering, 9905, [99051Q]. DOI: 10.1117/12.2232034 

2012

  • Watts, A. L. (2012). The Violent Neutron Star. ASP Conference Series, 466, 15-20. [details] 
  • Feroci, M., den Herder, J. W., Bozzo, E., Barret, D., Brandt, S., Hernanz, M., ... Zhang, B. (2012). LOFT: the Large Observatory For x-ray Timing. Proceedings of SPIE, the International Society for Optical Engineering, 8443, 84432D. DOI: 10.1117/12.926310  [details] 

2011

  • Altamirano, D., Kalamkar, M., Yang, Y., Degenaar, N. D., Wijnands, R., Casella, P., ... Kaur, R. (2011). Discovery of 1 Hz quasi-periodic oscillations in an RXTE observation of MAXI J1543-564. The astronomer's telegram, 3334, 1.
  • Altamirano, D., Linares Alegret, M., van der Klis, M., Wijnands, R., Kalamkar, M., Casella, P., ... Rea, N. (2011). Discovery of 10 mHz quasi-periodic oscillations likely from IGR J17091-3624. The astronomer's telegram, 3225, 1.
  • Linares Alegret, M., Altamirano, D., Watts, A. L., Strohmayer, T., Chakrabarty, D., Patruno, A., ... Rea, N. (2011). RXTE detection of a thermonuclear burst from IGR J17498-2921: distance estimate and burst oscillations. The astronomer's telegram, 3568, 1.
  • Linares Alegret, M., Altamirano, D., Watts, A. L., van der Klis, M., Wijnands, R., Patruno, A., ... Rea, N. (2011). SAX J1747.0-2853: 'normal' thermonuclear bursts resumed. The astronomer's telegram, 3217, 1.

2010

  • Altamirano, D., Patruno, A., Watts, A., Armas Padilla, M., Cavecchi, Y., Degenaar, N., ... Rea, N. (2010). Discovery of kilohertz QPOs in RXTE observations of SAX J1748.9-2021. The astronomer's telegram, 2426. [details] 
  • Altamirano, D., Watts, A., Kalamkar, M., Homan, J., Yang, Y., Casella, P., ... Wijnands, R. (2010). Discovery of 11 Hz burst oscillations from the 11 Hz eclipsing pulsar in Terzan 5. The astronomer's telegram, 2932. [details] 
  • Altamirano, D., Wijnands, R., van der Klis, M., Patruno, A., Watts, A., Armas Padilla, M., ... Rea, N. (2010). Detection of coherent millisecond pulsations at ~518 Hz in the LMXB Swift J1749.4-2807 (GRB060602B). The astronomer's telegram, 2565. [details] 
  • Kalamkar, M., Yang, Y., Altamirano, D., Casella, P., Linares, M., Patruno, A., ... Rea, N. (2010). MAXI J1659-152 is a BH candidate. The astronomer's telegram, 2881. [details] 
  • Kaur, R., Casella, P., Linares, M., Altamirano, D., Patruno, A., Armas-Padilla, M., ... Rea, N. (2010). Discovery of 0.19 Hz QPO in MAXI J1409-619. The astronomer's telegram, 3082. [details] 
  • Linares, M., Altamirano, D., Watts, A., van der Klis, M., Wijnands, R., Homan, J., ... Rea, N. (2010). Discovery of mHz QPOs and burst rate evolution in the active Terzan 5 neutron star transient. The astronomer's telegram, 2958. [details] 
  • Linares, M., Soleri, P., Altamirano, D., Armas-Padilla, M., Cavecchi, Y., Degenaar, N., ... Homan, J. (2010). Swift-XRT detects X-ray burst from Circinus X-1. The astronomer's telegram, 2651. [details] 
  • Linares, M., Soleri, P., Watts, A., Altamirano, D., Armas-Padilla, M., Cavecchi, Y., ... Rea, N. (2010). RXTE detects X-ray bursts from Circinus X-1. The astronomer's telegram, 2643. [details] 
  • Patruno, A., Altamirano, D., Watts, A., Armas Padilla, M., Cavecchi, Y., Degenaar, N., ... Pooley, D. (2010). Detection of pulsations and identification of SAX J1748.9-2021 as the X-ray transient in NGC 6440. The astronomer's telegram, 2407. [details] 
  • Patruno, A., Yang, Y., Altamirano, D., Armas-Padilla, M., Cavecchi, Y., Degenaar, N., ... Heinke, C. (2010). New outburst of the accreting millisecond X-ray pulsar NGC 6440 X-2 and discovery of a strong 1 Hz modulation in the light-curve. The astronomer's telegram, 2672. [details] 
  • Russell, D. M., Lewis, F., Bersier, D., Cano, Z., Gandhi, P., Patruno, A., ... Rea, N. (2010). Optical variability in MAXI J1659-152. The astronomer's telegram, 2884. [details] 
  • Yang, Y. J., Russell, D. M., Wijnands, R., van der Klis, M., Altamirano, D., Patruno, A., ... Kong, A. K. H. (2010). SWIFT J1749.4-2807: X-ray decay, refined position and optical observation. The astronomer's telegram, 2579. [details] 
  • Kaneko, Y., Gogus, E., Kouveliotou, C., Ramirez-Ruiz, E., Granot, J., van der Horst, A. J., & Watts, A. L. (2010). Magnetar Twists: Fermi/gbm Detection Of Sgr J1550-5418. Bulletin - American Astronomical Society, 11, 681.
  • Kaneko, Y., Göğüş, E., Kouveliotou, C., Granot, J., Ramirez-Ruiz, E., van der Horst, A. J., ... Woods, P. M. (2010). ERRATUM: "Magnetar Twists: Fermi/Gamma-Ray Burst Monitor Detection of SGR J1550-5418" (2010, ApJ, 710, 1335). Astrophysical Journal, 712, 761. DOI: 10.1088/0004-637X/712/1/761 

2009

  • Linares, M., Watts, A., Altamirano, D., Patruno, A., Casella, P., Rea, N., ... Mendez, M. (2009). Discovery of the shortest recurrence time between thermonuclear X-ray bursts. The astronomer's telegram, 1979. [details] 
  • Watts, A. L., Altamirano, D., Markwardt, C. B., & Strohmayer, T. E. (2009). Discovery of 245 Hz burst oscillations from the accreting millisecond pulsar IGR J17511-3057. The astronomer's telegram, 2199. [details] 
  • Watts, A. L., Patruno, A., van der Klis, M., Casella, P., Curran, P. A., Altamirano, D., ... Rea, N. (2009). GRB 091010: RXTE detection. GRB Coordinates Network, Circular Service, 10014. [details] 
  • Watts, A., Altamirano, D., Casella, P., Cavecchi, Y., Degenaar, N., Linares, M., ... Wijnands, R. (2009). Discovery of burst oscillations near the spin frequency in the intermittent accreting millisecond pulsar HETE J1900.1-2455. The astronomer's telegram, 2004. [details] 

2008

  • Hartman, J. M., Chakrabarty, D., Patruno, A., & Watts, A. L. (2008). The Long-term Timing of Accreting Millisecond Pulsar SAX J1808.4-3658. In AAS/High Energy Astrophysics Division (HEAD 2008)

2016

  • Younes, G. A., Kouveliotou, C., Kargaltsev, O., Gill, R., Granot, J., Watts, A., ... Roberts, O. (2016). Unexpected Windy Weather Around a Highly Magnetized Neutron Star.

2012

  • Cavecchi, Y., Watts, A., Levin, Y., & Braithwaite, J. (2012). Thermonuclear explosions on neutron stars. IAC Talks, Astronomy and Astrophysics Seminars from the Instituto de Astrofísica de Canarias.

Talk / presentation

  • Watts, A. L. (invited speaker) (4-11-2016). Colloquium: Thermonuclear burst oscillations: where firestorms meet fundamental physics, TU Darmstadt.
  • Watts, A. L. (speaker) (7-2016). Towards an Interpretation of Neutron Star Seismology, Workshop on Laboratory and astronomical observations of dense matter, Seattle, United States.
  • Watts, A. L. (invited speaker) (11-7-2016). From Relativity to QCD: the Equation of State of Neutron Stars, 21st International Conference on General Relativity and Gravitation (GR21), New York, United States.
  • Watts, A. L. (invited speaker) (21-6-2016). Colloquium: Neutron star explosions, Johannes Gutenberg-Universitat Mainz.
  • Watts, A. L. (invited speaker) (9-6-2016). Colloquium: From firestorms to fundamental physics, Ludwig Maximilians Universität-München.
  • Watts, A. L. (invited speaker) (10-3-2016). Colloquium: Explosions from neutron stars, Department of Physics, KTH Royal Institute of Technology, AlbaNova, SE-106 91 Stockholm, Sweden.

Others

  • Watts, A. L. (participant) (2016). Workshop on Laboratory and astronomical observations of dense matter, Seattle, United States. Main Organizer workshop on Laboratory and astronomical observations of dense matter (part of INT Programme INT-16-2b on the Phases of Dense Matter)
    (organising a conference, workshop, ...).
  • Watts, A. L. (participant) (10-2016). WE-Hereaus Seminar 626, Bad Honnef, Germany. SOC Co-Chair (organising a conference, workshop, ...).
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  • No ancillary activities
  • Royal Astronomical Society
    Scientific Editor for Monthly Notices of the Royal Astronomical Society.

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