Dr. A. (Antonija) Oklopčić
Faculty of Science
Anton Pannekoek Institute for Astronomy
Visiting address
- Science Park 904
Postal address
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Postbus 94249
1090 GE Amsterdam
Contact details
Social media
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Publications
2024
- Barat, S., Désert, J.-M., Goyal, J. M., Vazan, A., Kawashima, Y., Fortney, J. J., Bean, J. L., Line, M. R., Panwar, V., Jacobs, B., Shivkumar, H., Sikora, J., Baeyens, R., Oklopčić, A., David, T. J., & Livingston, J. H. (2024). First comparative exoplanetology within a transiting multi-planet system: Comparing the atmospheres of V1298 Tau b and c. Astronomy & Astrophysics, 692, A198. https://doi.org/10.1051/0004-6361/202451127
- Gully-Santiago, M., Morley, C. V., Luna, J., MacLeod, M., Oklopčić, A., Ganesh, A., Tran, Q. H., Zhang, Z., Bowler, B. P., Cochran, W. D., Krolikowski, D. M., Mahadevan, S., Ninan, J. P., Stefánsson, G., Vanderburg, A., Zalesky, J. A., & Zeimann, G. R. (2024). A Large and Variable Leading Tail of Helium in a Hot Saturn Undergoing Runaway Inflation. The Astronomical Journal, 167(4), 142. https://doi.org/10.3847/1538-3881/ad1ee8
Linssen, D., Shih, J., MacLeod, M., & Oklopčić, A. (2024). The open-source sunbather code: Modeling escaping planetary atmospheres and their transit spectra. Astronomy & Astrophysics, 688, Article A43. https://doi.org/10.1051/0004-6361/202450240 [details]- Nail, F., Oklopčić, A., & MacLeod, M. (2024). Effects of planetary day-night temperature gradients on He 1083 nm transit spectra. Astronomy and Astrophysics, 684, Article A20. https://doi.org/10.1051/0004-6361/202347709 [details]
- Pérez-González, J., Greklek-McKeon, M., Vissapragada, S., Saidel, M., Knutson, H. A., Linssen, D., & Oklopčić, A. (2024). Detection of an Atmospheric Outflow from the Young Hot Saturn TOI-1268b. Astronomical Journal, 167(5), Article 214. https://doi.org/10.3847/1538-3881/ad34b6 [details]
- Tyler, D., Petigura, E. A., Oklopčić, A., & David, T. J. (2024). WASP-69b’s Escaping Envelope Is Confined to a Tail Extending at Least 7 Rp. Astrophysical Journal, 960(2), 123. https://doi.org/10.3847/1538-4357/ad11d0
- Vissapragada, S., Greklek-McKeon, M., Linssen, D., MacLeod, M., Thorngren, D. P., Gao, P., Knutson, H. A., Latham, D. W., López-Morales, M., Oklopčić, A., Pérez González, J., Saidel, M., Tumborang, A., & Yoshida, S. (2024). Helium in the Extended Atmosphere of the Warm Superpuff TOI-1420b. Astronomical Journal, 167(5), Article 199. https://doi.org/10.3847/1538-3881/ad3241 [details]
2023
- Bennett, K. A., Redfield, S., Oklopčić, A., Carleo, I., Ninan, J. P., & Endl, M. (2023). Nondetection of helium in the hot Jupiter WASP-48b. Astrophysical Journal, 165(6), Article 264. https://doi.org/10.3847/1538-3881/acd34b [details]
- Linssen, D. C., & Oklopčić, A. (2023). Expanding the inventory of spectral lines used to trace atmospheric escape in exoplanets. Astronomy & Astrophysics, 675, Article A193. https://doi.org/10.1051/0004-6361/202346583 [details]
- Linssen, D. C., Oklopčić, A., & MacLeod, M. (2023). Constraining planetary mass-loss rates by simulating Parker wind profiles with Cloudy (Corrigendum). Astronomy & Astrophysics, 671, C3. https://doi.org/10.1051/0004-6361/202243830e
- Zhang, Z., Morley, C. V., Gully-Santiago, M., MacLeod, M., Oklopčić, A., Luna, J., Tran, Q. H., Ninan, J. P., Mahadevan, S., Krolikowski, D. M., Cochran, W. D., Bowler, B. P., Endl, M., Stefánsson, G., Tofflemire, B. M., Vanderburg, A., & Zeimann, G. R. (2023). Giant tidal tails of helium escaping the hot Jupiter HAT-P-32 b. Science Advances, 9(23), Article eadf8736. https://doi.org/10.1126/sciadv.adf8736 [details]
2022
- Barragán, O., Oklopčić, A., & KESPRINT (2022). The young HD 73583 (TOI-560) planetary system : two 10-M⊕ mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf. Monthly Notices of the Royal Astronomical Society, 514(2), 1606-1627. https://doi.org/10.1093/mnras/stac638 [details]
- Brande, J., Crossfield, I. J. M., Kreidberg, L., Oklopčić, A., Polanski, A. S., Barman, T., Benneke, B., Christiansen, J. L., Dragomir, D., Foreman-Mackey, D., Fortney, J. J., Greene, T. P., Howard, A. W., Knutson, H. A., Lothringer, J. D., Mikal-Evans, T., & Morley, C. V. (2022). A Mirage or an Oasis? Water Vapor in the Atmosphere of the Warm Neptune TOI-674 b. Astronomical Journal, 164(5), Article 197. https://doi.org/10.3847/1538-3881/ac8b7e [details]
- Kirk, J., Dos Santos, L. A., López-Morales, M., Alam, M. K., Oklopčić, A., Macleod, M., Zeng, L., & Zhou, G. (2022). Keck/NIRSPEC Studies of He I in the Atmospheres of Two Inflated Hot Gas Giants Orbiting K Dwarfs: WASP-52b and WASP-177b. Astronomical Journal, 164(1), Article 24. https://doi.org/10.3847/1538-3881/ac722f [details]
- Linssen, D. C., Oklopčić, A., & Macleod, M. (2022). Constraining planetary mass-loss rates by simulating Parker wind profiles with Cloudy. Astronomy and Astrophysics, 667, Article A54. https://doi.org/10.1051/0004-6361/202243830 [details]
- MacLeod, M., & Oklopčić, A. (2022). Stellar Wind Confinement of Evaporating Exoplanet Atmospheres and Its Signatures in 1083 nm Observations. Astrophysical Journal, 926(2), Article 226. https://doi.org/10.3847/1538-4357/ac46ce [details]
- Spake, J. J., Oklopčić, A., Hillenbrand, L. A., Knutson, H. A., Kasper, D., Dai, F., Orell-Miquel, J., Vissapragada, S., Zhang, M., & Bean, J. L. (2022). Non-detection of He I in the Atmosphere of GJ 1214b with Keck/NIRSPEC, at a Time of Minimal Telluric Contamination. Astrophysical Journal Letters, 939(1), Article L11. https://doi.org/10.3847/2041-8213/ac88c9 [details]
- Vissapragada, S., Knutson, H. A., Greklek-McKeon, M., Oklopčić, A., Dai, F., dos Santos, L. A., Jovanovic, N., Mawet, D., Millar-Blanchaer, M. A., Paragas, K., Spake, J. J., Tinyanont, S., & Vasisht, G. (2022). The Upper Edge of the Neptune Desert Is Stable Against Photoevaporation. Astronomical Journal, 164(6), Article 234. https://doi.org/10.3847/1538-3881/ac92f2 [details]
- Zhang, M., Cauley, P. W., Knutson, H. A., France, K., Kreidberg, L., Oklopčić, A., Redfield, S., & Shkolnik, E. L. (2022). More Evidence for Variable Helium Absorption from HD 189733b. Astronomical Journal, 164(6), Article 237. https://doi.org/10.3847/1538-3881/ac9675 [details]
2021
- Paragas, K., Vissapragada, S., Knutson, H. A., Oklopčić, A., Chachan, Y., Greklek-McKeon, M., Dai, F., Tinyanont, S., & Vasisht, G. (2021). Metastable Helium Reveals an Extended Atmosphere for the Gas Giant HAT-P-18b. Astrophysical Journal Letters, 909(1), Article L10. https://doi.org/10.3847/2041-8213/abe706 [details]
- Spake, J. J., Oklopčić, A., & Hillenbrand, L. A. (2021). The Posttransit Tail of WASP-107b Observed at 10830 Å. The Astronomical Journal, 162(6), Article 284. https://doi.org/10.3847/1538-3881/ac178a [details]
- Vissapragada, S., Stefánsson, G., Greklek-McKeon, M., Oklopčić, A., Knutson, H. A., Ninan, J. P., Mahadevan, S., Cañas, C. I., Chachan, Y., Cochran, W. D., Collins, K. A., Dai, F., David, T. J., Halverson, S., Hawley, S. L., Hebb, L., Kanodia, S., Kowalski, A. F., Livingston, J. H., ... Wisniewski, J. (2021). A Search for Planetary Metastable Helium Absorption in the V1298 Tau System. The Astronomical Journal, 162(5), Article 222. https://doi.org/10.3847/1538-3881/ac1bb0 [details]
- Zhang, M., Knutson, H. A., Wang, L., Dai, F., Oklopcic, A., & Hu, R. (2021). No Escaping Helium from 55 Cnc e. Astrophysical Journal, 161(4), Article 181. https://doi.org/10.3847/1538-3881/abe382 [details]
2020
- Kasper, D., Bean, J. L., Oklopčić, A., Malsky, I., Kempton, EM-R., Désert, J-M., Rogers, L. A., & Mansfield, M. (2020). Nondetection of Helium in the Upper Atmospheres of Three Sub-Neptune Exoplanets. Astronomical Journal, 160(6), Article 258. https://doi.org/10.3847/1538-3881/abbee6 [details]
2021
- Paragas, K., Vissapragada, S., Knutson, H. A., & Oklopčić, A. (2021). Metastable Helium Reveals Ongoing Mass Loss for the Gas Giant HAT-P-18b. Bulletin - American Astronomical Society, 53(1), Article 543.05. https://baas.aas.org/pub/2021n1i543p05/release/1 [details]
2025
- Barat, S. (2025). Exoplanets through time: Atmospheric characterization of young transiting planets to trace signatures of early evolution. [Thesis, fully internal, Universiteit van Amsterdam]. [details]
- Linssen, D. C. (2025). Modeling atmospheric escape from exoplanets. [Thesis, fully internal, Universiteit van Amsterdam]. [details]
2024
- Linssen, D. C., Oklopčić, A. & MacLeod, M. (25-9-2024). sunset: A database of synthetic atmospheric-escape transmission spectra for nearly every transiting exoplanet. Zenodo. https://doi.org/10.5281/zenodo.13785441
- Linssen, D. C., Shih, J., MacLeod, M. & Oklopčić, A. (2-8-2024). Reproduction package for the paper "The open-source sunbather code: Modeling escaping planetary atmospheres and their transit spectra". Zenodo. https://doi.org/10.5281/zenodo.13354848
- Linssen, D., Shih, J., MacLeod, M. & Oklopčić, A. (16-5-2024). Reproduction package for the paper "The open-source sunbather code: modeling escaping planetary atmospheres and their transit spectra". Zenodo. https://doi.org/10.5281/zenodo.11202781
2023
- Nail, F., MacLeod, M. & Oklopčić, A. (24-10-2023). Reproduction package for the paper: "Cold day-side winds shape large leading streams in evaporating exoplanet atmospheres". Zenodo. https://doi.org/10.5281/zenodo.13988502
- Nail, F., Oklopcic, A. & MacLeod, M. (20-10-2023). Reproduction package for the paper: "The effects of planetary day-night temperature gradients on He 1083 nm transit spectra". Zenodo. https://doi.org/10.5281/zenodo.10025850
- Linssen, D. C. & Oklopčić, A. (7-6-2023). Reproduction package for the paper "Expanding the inventory of spectral lines used to trace atmospheric escape in exoplanets". Zenodo. https://doi.org/10.5281/zenodo.8013350
- Morley, C., Gully-Santiago, M., MacLeod, M., Oklopcic, A., Luna, J., Tran, Q. H., Ninan, J. P., Mahadevan, S., Krolikowski, D. M., Cochran, W. D., Bowler, B. P., Endl, M., Stefansson, G., Tofflemire, B. M., Vanderburg, A. & Zeimann, G. R. (23-4-2023). Giant Tidal Tails of Helium Escaping the Hot Jupiter HAT-P-32 b. Zenodo. https://doi.org/10.5281/zenodo.7767042
2022
- Linssen, D. C., Oklopčić, A. & MacLeod, M. (12-9-2022). Reproduction package for the paper "Constraining planetary mass-loss rates by simulating Parker wind profiles with Cloudy". Zenodo. https://doi.org/10.5281/zenodo.6798207
2021
- MacLeod, M. & Oklopcic, A. (14-7-2021). planet wind evaporation data. Zenodo. https://doi.org/10.5281/zenodo.5750747
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Ancillary activities
No ancillary activities
Linssen, D., Shih, J., MacLeod, M., & Oklopčić, A. (2024). The open-source sunbather code: Modeling escaping planetary atmospheres and their transit spectra. Astronomy & Astrophysics, 688, Article A43.