Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Airapetian, Vladimir S."'
Autor:
Namekata, Kosuke, Airapetian, Vladimir S., Petit, Pascal, Maehara, Hiroyuki, Ikuta, Kai, Inoue, Shun, Notsu, Yuta, Paudel, Rishi R., Arzoumanian, Zaven, Avramova-Boncheva, Antoaneta A., Gendreau, Keith, Jeffers, Sandra V., Marsden, Stephen, Morin, Julien, Neiner, Coralie, Vidotto, Aline A., Shibata, Kazunari
Young solar-type stars frequently produce superflares, serving as a unique window into the young Sun-Earth environments. Large solar flares are closely linked to coronal mass ejections (CMEs) associated with filament/prominence eruptions, but its obs
Externí odkaz:
http://arxiv.org/abs/2311.07380
Recent irradiance measurements from numerous heliophysics and astrophysics missions including SDO, GOES, Kepler, TESS, Chandra, XMM-Newton, and NICER have provided critical input in understanding the physics of the most powerful transient events on t
Externí odkaz:
http://arxiv.org/abs/2306.03765
Autor:
Namekata, Kosuke, Toriumi, Shin, Airapetian, Vladimir S., Shoda, Munehito, Watanabe, Kyoko, Notsu, Yuta
Kepler Space Telescope and Transiting Exoplanet Survey Satellite unveiled that Sun-like stars frequently host exoplanets. These exoplanets are subject to fluxes of ionizing radiation in the form of X-ray and extreme-ultraviolet (EUV) radiation that m
Externí odkaz:
http://arxiv.org/abs/2302.10376
The formation of extremely hot outer atmospheres is one of the most prominent manifestations of magnetic activity common to the late-type dwarf stars, including the Sun. It is widely believed that these atmospheric layers, the corona, transition regi
Externí odkaz:
http://arxiv.org/abs/2208.10511
Autor:
Getman, Konstantin V., Feigelson, Eric D., Garmire, Gordon P., Broos, Patrick S., Kuhn, Michael A., Preibisch, Thomas, Airapetian, Vladimir S.
Measuring the evolution of X-ray emission from pre-main sequence (PMS) stars gives insight into two issues: the response of magnetic dynamo processes to changes in interior structure and the effects of high-energy radiation on protoplanetary disks an
Externí odkaz:
http://arxiv.org/abs/2203.02047
Autor:
Toriumi, Shin, Airapetian, Vladimir S.
The Sun and sun-like stars commonly host the multi-million-Kelvin coronae and the 10,000-Kelvin chromospheres. These extremely hot gases generate X-ray and Extreme Ultraviolet emissions that may impact the erosion and chemistry of (exo)planetary atmo
Externí odkaz:
http://arxiv.org/abs/2202.01232
Autor:
Wisniewski, John P., Berdyugin, Andrei V., Berdyugina, Svetlana V., Danchi, William C., Dong, Ruobing, Oudmaijer, Rene D., Airapetian, Vladimir S., Brittain, Sean D., Gayley, Ken, Ignace, Richard, Langlois, Maud, Lawson, Kellen D., Lomax, Jamie R., Tamura, Motohide, Vink, Jorick S., Scowen, Paul A.
Polstar is a proposed NASA MIDEX mission that would feature a high resolution UV spectropolarimeter capable of measure all four Stokes parameters onboard a 60cm telescope. The mission would pioneer the field of time-domain UV spectropolarimetry. Time
Externí odkaz:
http://arxiv.org/abs/2111.06891
Autor:
Airapetian, Vladimir S., Jin, Meng, Lueftinger, Theresa, Saikia, Sudesha Boro, Kochukhov, Oleg, Guedel, Manuel, Van Der Holst, Bart, Manchester IV, W.
The young magnetically active solar-like stars are efficient generators of ionizing radiation in the form of X-ray and Extreme UV (EUV) flux, stellar wind and eruptive events. These outputs are the critical factors affecting atmospheric escape and ch
Externí odkaz:
http://arxiv.org/abs/2106.01284
Upcoming missions, including the James Webb Space Telescope, will soon characterize the atmospheres of terrestrial-type exoplanets in habitable zones around cool K- and M-type stars searching for atmospheric biosignatures. Recent observations suggest
Externí odkaz:
http://arxiv.org/abs/2011.03761
Autor:
Toriumi, Shin, Airapetian, Vladimir S., Hudson, Hugh S., Schrijver, Carolus J., Cheung, Mark C. M., DeRosa, Marc L.
Major solar flares are prone to occur in active region atmospheres associated with large, complex, dynamically-evolving sunspots. This points to the importance of monitoring the evolution of starspots, not only in visible but also in ultra violet (UV
Externí odkaz:
http://arxiv.org/abs/2008.04319