Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Zapartas, E."'
Autor:
Zapartas, E., de Wit, S., Antoniadis, K., Muñoz-Sanchez, G., Souropanis, D., Bonanos, A. Z., Maravelias, G., Kovlakas, K., Kruckow, M. U., Fragos, T., Andrews, J. J., Bavera, S. S., Briel, M., Gossage, S., Kasdagli, E., Rocha, K. A., Sun, M., Srivastava, P. M., Xing, Z.
The rate and mechanism of mass loss of red supergiants (RSGs) remain poorly understood, especially at low metallicities. Motivated by the new empirical prescription by Yang et al. 2023, based on the largest and most complete sample in the Small Magel
Externí odkaz:
http://arxiv.org/abs/2410.07335
Autor:
de Wit, S., Bonanos, A. Z., Antoniadis, K., Zapartas, E., Ruiz, A., Britavskiy, N., Christodoulou, E., De, K., Maravelias, G., Munoz-Sanchez, G., Tsopela, A.
Publikováno v:
A&A 689, A46 (2024)
Mass loss during the red supergiant (RSG) phase plays a crucial role in the evolution of an intermediate massive star, however, the underlying mechanism remains unknown. We aim to increase the sample of well-characterized RSGs at subsolar metallicity
Externí odkaz:
http://arxiv.org/abs/2402.12442
Publikováno v:
A&A 686, A88 (2024)
The high mass-loss rates of red supergiants (RSGs) drastically affect their evolution and final fate, but their mass-loss mechanism remains poorly understood. Various empirical prescriptions scaled with luminosity have been derived in the literature,
Externí odkaz:
http://arxiv.org/abs/2401.15163
Autor:
Bonanos, A. Z., Tramper, F., de Wit, S., Christodoulou, E., Munoz-Sanchez, G., Antoniadis, K., Athanasiou, S., Maravelias, G., Yang, M., Zapartas, E.
Publikováno v:
A&A 686, A77 (2024)
The ASSESS project aims to determine the role of episodic mass-loss in the evolution of massive stars. As a first step, we construct a catalog of spectroscopically identified dusty, evolved massive stars in ten southern galaxies for which Spitzer poi
Externí odkaz:
http://arxiv.org/abs/2312.04626
Autor:
Bonanos, A. Z., Maravelias, G., Yang, M., Tramper, F., de Wit, S., Zapartas, E., Antoniadis, K., Christodoulou, E., Munoz-Sanchez, G.
Episodic mass loss is not understood theoretically, neither accounted for in state-of-the-art models of stellar evolution, which has far-reaching consequences for many areas of astronomy. We introduce the ERC-funded ASSESS project (2018-2024), which
Externí odkaz:
http://arxiv.org/abs/2308.04891
Autor:
Zapartas, E., Mink, S. E. de, Dyk, S. D. Van, Fox, O. D., Smith, N., Bostroem, K. A., Koter, A. de, Filippenko, A. V., Izzard, R. G., Kelly, P. L., Neijssel, C. J., Renzo, M., Ryder, S.
Many young, massive stars are found in close binaries. Using population synthesis simulations. we predict the likelihood of a companion star being present when these massive stars end their lives as core-collapse supernovae (SNe). We focus on strippe
Externí odkaz:
http://hdl.handle.net/10150/624948
http://arizona.openrepository.com/arizona/handle/10150/624948
http://arizona.openrepository.com/arizona/handle/10150/624948
Autor:
Margutti, Raffaella, Kamble, A., Milisavljevic, D., Zapartas, E., de Mink, S. E., Drout, M., Chornock, R., Risaliti, G., Zauderer, B. A., Bietenholz, M., Cantiello, M., Chakraborti, S., Chomiuk, L., Fong, W., Grefenstette, B., Guidorzi, C., Kirshner, R., Parrent, J. T., Patnaude, D., Soderberg, A. M., Gehrels, N. C., Harrison, F.
We present multi-wavelength observations of SN 2014C during the first 500 days. These observations represent the first solid detection of a young extragalactic stripped-envelope SN out to high-energy X-rays similar to 40 keV. SN 2014C shows ordinary
Externí odkaz:
http://hdl.handle.net/10150/624387
http://arizona.openrepository.com/arizona/handle/10150/624387
http://arizona.openrepository.com/arizona/handle/10150/624387
Autor:
Karamehmetoglu, E., Sollerman, J., Taddia, F., Barbarino, C., Feindt, U., Fremling, C., Gal-Yam, A., Kasliwal, M. M., Petrushevska, T., Schulze, S., Stritzinger, M. D., Zapartas, E.
Publikováno v:
A&A 678, A87 (2023)
If high-mass stars (>20-25 Msun) are the progenitors of stripped-envelope (SE) supernovae (SNe), their massive ejecta should lead to broad, long-duration lightcurves (LCs). Instead, literature samples of SE~SNe have reported relatively narrow LCs wit
Externí odkaz:
http://arxiv.org/abs/2210.09402
Autor:
van Son, L. A. C., de Mink, S. E., Renzo, M., Justham, S., Zapartas, E., Breivik, K., Callister, T., Farr, W. M., Conroy, C.
Gravitational-wave (GW) detections are starting to reveal features in the mass distribution of double compact objects. The lower end of the black hole (BH) mass distribution is especially interesting as few formation channels contribute here and beca
Externí odkaz:
http://arxiv.org/abs/2209.13609
Autor:
de Wit, S., Bonanos, A. Z., Tramper, F., Yang, M., Maravelias, G., Boutsia, K., Britavskiy, N., Zapartas, E.
Publikováno v:
A&A 669, A86 (2023)
There is evidence that some red supergiants (RSGs) experience short lived phases of extreme mass loss, producing copious amounts of dust. These episodic outburst phases help to strip the hydrogen envelope of evolved massive stars, drastically affecti
Externí odkaz:
http://arxiv.org/abs/2209.11239