Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Gry, Cecile"'
Autor:
Jenkins, Edward B., Gry, Cécile
Publikováno v:
Astrophysical Journal 902 (2020) 16
We have examined UV spectra recorded by the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope for three stars, HD32309, 41 Ari, and $\eta$~Tel, that are located well inside the boundary of the Local Hot Bubble in our search fo
Externí odkaz:
http://arxiv.org/abs/2009.00677
Autor:
Jenkins, Edward B., Gry, Cecile
Publikováno v:
Astrophysical Journal 896 (2020) 24
We measured 304 absorption features in the ultraviolet and visible spectra of the star 51 Oph, which is known to have a debris disk with a high inclination. We analyzed the relative populations of atoms in excited fine-structure and metastable levels
Externí odkaz:
http://arxiv.org/abs/2004.10238
Magnetic fields have important or dominant effects in many areas of astrophysics, but have been very difficult to quantify. Spectropolarimetry from Ground State Alignment (GSA) has been suggested as a direct tracer of magnetic field in interstellar d
Externí odkaz:
http://arxiv.org/abs/1903.11065
Autor:
Gry, Cecile, Jenkins, Edward B., Boissé, Patrick, Bourlot, Jacques Le, Lebouteiller, Vianney, Welty, Daniel, Boulanger, François
A comprehensive study of interstellar medium phases and the nature of their boundaries or connections requires comparing abundances and velocity profiles from tracers of the different phases. In the UV, studies of a wealth of absorption features appe
Externí odkaz:
http://arxiv.org/abs/1903.06250
Autor:
Bouret, Jean-Claude, Neiner, Coralie, de Castro, Ana I. Gómez, Evans, Chris, Gaensicke, Boris, Shore, Steve, Fossati, Luca, Gry, Cécile, Charlot, Stéphane, Marin, Frédéric, Noterdaeme, Pasquier, Chaufray, Jean-Yves
POLLUX is a high-resolution, UV spectropolarimeter proposed for the 15-meter primary mirror option of LUVOIR. The instrument Phase 0 study is supported by the French Space Agency (CNES) and performed by a consortium of European scientists. POLLUX has
Externí odkaz:
http://arxiv.org/abs/1805.10021
Autor:
Wakelam, Valentine, Bron, Emeric, Cazaux, Stephanie, Dulieu, Francois, Gry, Cécile, Guillard, Pierre, Habart, Emilie, Hornekær, Liv, Morisset, Sabine, Nyman, Gunnar, Pirronello, Valerio, Price, Stephen D., Valdivia, Valeska, Vidali, Gianfranco, Watanabe, Naoki
Molecular hydrogen is the most abundant molecule in the universe. It is the first one to form and survive photo-dissociation in tenuous environments. Its formation involves catalytic reactions on the surface of interstellar grains. The micro-physics
Externí odkaz:
http://arxiv.org/abs/1711.10568
Autor:
Gry, Cecile, Jenkins, Edward B.
Publikováno v:
A&A 598, A31 (2017)
We analyze interstellar absorption features in the full UV spectrum of the nearby (d = 24 pc) B8 IVn star alpha Leo (Regulus) obtained at high resolution and high S/N by the HST ASTRAL Treasury program. We derive column densities for many key atomic
Externí odkaz:
http://arxiv.org/abs/1609.02518
Autor:
Neufeld, David A., Black, John H., Gerin, Maryvonne, Goicoechea, Javier R., Goldsmith, Paul F., Gry, Cecile, Gupta, Harshal, Herbst, Eric, Indriolo, Nick, Lis, Dariusz, Menten, Karl M., Monje, Raquel, Mookerjea, Bhaswati, Persson, Carina, Sonnentrucker, Paule, Wolfire, Mark G.
We report additional detections of the chloronium molecular ion, H$_2$Cl$^+$, toward four bright submillimeter continuum sources: G29.96, W49N, W51, and W3(OH). With the use of the HIFI instrument on the Herschel Space Observatory, we observed the $2
Externí odkaz:
http://arxiv.org/abs/1505.00786
Autor:
Gry, Cecile, Jenkins, Edward B.
We offer a new, more inclusive, picture of the local interstellar medium, where it is composed of a single, monolithic cloud that surrounds the Sun in all directions. Our study of velocities based on Mg II and Fe II ultraviolet absorption lines indic
Externí odkaz:
http://arxiv.org/abs/1410.1647
Autor:
Gry, Cecile, Jenkins, Edward B.
Publikováno v:
A&A 567, A58 (2014)
Aims: We offer a new, simpler picture of the local interstellar medium, made of a single continuous cloud enveloping the Sun. This new outlook enables the description of a diffuse cloud from within and brings to light some unexpected properties. Meth
Externí odkaz:
http://arxiv.org/abs/1404.0326