Zobrazeno 1 - 10
of 38
pro vyhledávání: '"argiroffi, costanza"'
Autor:
Drake, Jeremy J., Gomez, Julián Alvarado, Argiroffi, Costanza, Flaccomio, Ettore, Garraffo, Cecilia, Grosso, Nicolas, Islam, Nazma, Karovska, Margarita, Kashyap, Vinay L., Monsch, Kristina, Ness, Jan-Uwe, Sciortino, Salvatore, Wargelin, Bradford
We outline some of the highlights of the scientific case for the advancement of stellar high energy physics using the Line Emission Mapper X-ray Probe ({\it LEM}). The key to advancements with LEM lie in its large effective area -- up to 100 times th
Externí odkaz:
http://arxiv.org/abs/2310.17563
Autor:
Kastner, Joel H., Principe, David A., Punzi, Kristina, Stelzer, Beate, Gorti, Uma, Pascucci, Ilaria, Argiroffi, Costanza
To investigate the potential connection between the intense X-ray emission from young low-mass stars and the lifetimes of their circumstellar planet-forming disks, we have compiled the X-ray luminosities (L-X) of M stars in the similar to 8 Myr old T
Externí odkaz:
http://hdl.handle.net/10150/621232
http://arizona.openrepository.com/arizona/handle/10150/621232
http://arizona.openrepository.com/arizona/handle/10150/621232
Autor:
Lavail, Alexis, Kochukhov, Oleg, Hussain, Gaitee, Argiroffi, Costanza, Alecian, Evelyne, Morin, Julien, collaboration, the BinaMIcS
We report time-resolved, high-resolution optical spectropolarimetric observations of the young double-lined spectroscopic binary V1878 Ori. Our observations were collected with the ESPaDOnS spectropolarimeter at the Canada-France-Hawaii Telescope thr
Externí odkaz:
http://arxiv.org/abs/2007.01518
Autor:
Colombo, Salvatore, Ibgui, Laurent, Orlando, Salvatore, Rodriguez, Rafael, Espinosa, Guadalupe, González, Matthias, Stehlé, Chantal, de Sá, Lionel, Argiroffi, Costanza, Bonito, Rosaria, Peres, Giovanni
Publikováno v:
A&A 629, L9 (2019)
Models and observations indicate that the impact of matter accreting onto the surface of young stars produces regions at the base of accretion columns, in which optically thin and thick plasma components coexist. Thus an accurate description of these
Externí odkaz:
http://arxiv.org/abs/1908.06799
Autor:
Argiroffi, Costanza
Young stars show a variety of highly energetic phenomena, from accretion and outflow processes to hot coronal plasmas confined in their outer atmosphere, all regulated by the intense stellar magnetic fields. Many aspects on each of these phenomena ar
Externí odkaz:
http://arxiv.org/abs/1905.02471
Autor:
Drake, Jeremy J., Alvarado-Gómez, Julián D., Airapetian, Vladimir, Cauley, P. Wilson, Argiroffi, Costanza, Browning, Matthew K., Christian, Damian J., Cohen, Ofer, Corrales, Lia, Danchi, William, de Val-Borro, Miguel, Dong, Chuanfei, Forman, William, France, Kevin, Gallo, Elena, Garcia-Sage, Katherine, Garraffo, Cecilia, Gelino, Dawn M., Gronoff, Guillaume, Günther, H. Moritz, Harper, Graham M., Haywood, Raphaëlle D., Karovska, Margarita, Kashyap, Vinay, Kastner, Joel, Kim, Jinyoung Serena, Leutenegger, Maurice A., Linsky, Jeffrey, López-Morales, Mercedes, Micela, Giusi, Moschou, Sofia-Paraskevi, Oskinova, Lidia, Osten, Rachel A., Owen, James E., Poppenhaeger, Katja, Principe, David A., Pye, John P., Sciortino, Salvatore, Tzanavaris, Panayiotis, Wargelin, Brad, Wheatley, Peter J., Williams, Peter K. G., Winston, Elaine, Wolk, Scott J.
It is now recognized that energetic stellar photon and particle radiation evaporates and erodes planetary atmospheres and controls upper atmospheric chemistry. Key exoplanet host stars will be too faint at X-ray wavelengths for accurate characterizat
Externí odkaz:
http://arxiv.org/abs/1903.12338
Autor:
Colombo, Salvatore, Orlando, Salvatore, Peres, Giovanni, Reale, Fabio, Argiroffi, Costanza, Bonito, Rosaria, Ibgui, Laurent, Stehlé, Chantal
Publikováno v:
A&A 624, A50 (2019)
Classical T Tauri stars (CTTSs) are young low-mass stellar objects accreting mass from their circumstellar disks. They are characterized by high levels of coronal activity as revealed by X-ray observations. This activity may affect the disk stability
Externí odkaz:
http://arxiv.org/abs/1902.07048
Autor:
Miceli, Marco, Orlando, Salvatore, Burrows, David N., Frank, Kari A., Argiroffi, Costanza, Reale, Fabio, Peres, Giovanni, Petruk, Oleh, Bocchino, Fabrizio
Astrophysical shocks at all scales, from those in the heliosphere up to the cosmological shock waves, are typically "collisionless", because the thickness of their jump region is much shorter than the collisional mean free path. Across these jumps, e
Externí odkaz:
http://arxiv.org/abs/1901.10336
Autor:
Bonito, Rosaria, Hartigan, Patrick, Venuti, Laura, Guarcello, Mario, Prisinzano, Loredana, Argiroffi, Costanza, Messina, Sergio, Johns-Krull, Christopher, Feigelson, Eric, Stauffer, John, Giannini, Teresa, Antoniucci, Simone, Sciortino, Salvo, Micela, Giusi, Pillitteri, Ignazio, Fedele, Davide, Podio, Linda, Damiani, Francesco, McGehee, Peregrine, Street, Rachel, Gizis, John, Sacco, Germano, Magrini, Laura, Flaccomio, Ettore, Orlando, Salvatore, Miceli, Marco, Stelzer, Beate, Fuchs, Julien, Chen, Sophia, Pikuz, Sergey, Frasca, Antonio, Biazzo, Katia, Codella, Claudio, Pastorello, Andrea, Alcala', Juan Manuel, Covino, Elvira, Bianchi, Eleonora, Nisini, Brunella
Young stars exhibit short-term photometric variability caused by mass accretion events from circumstellar disks, the presence of dusty warps within the inner disks, starspots that rotate across the stellar surfaces, and flares. Long-term variability
Externí odkaz:
http://arxiv.org/abs/1812.03135
Context. The accretion process in Classical T Tauri Stars (CTTSs) can be studied through the analysis of some UV and X-ray emission lines which trace hot gas flows and act as diagnostics of the post-shock downfalling plasma. In the UV band, where hig
Externí odkaz:
http://arxiv.org/abs/1607.03009