Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Herpin, Fabrice"'
Autor:
Homan, Ward, Pimpanuwat, Bannawit, Herpin, Fabrice, Danilovich, Taissa, McDonald, Iain, Wallström, Sofia H. J., Richards, Anita M. S., Baudry, Alain, Sahai, Raghvendra, Millar, Tom J., de Koter, Alex, Gottlieb, C. A., Kervella, Pierre, Montargès, Miguel, Van de Sande, Marie, Decin, Leen, Zijlstra, Albert, Etoka, Sandra, Jeste, Manali, Müller, Holger S. P., Maes, Silke, Malfait, Jolien, Menten, Karl, Plane, John, Lee, Kelvin, Waters, Rens, Wong, Ka Tat, Lagadec, Eric, Gobrecht, David, Yates, Jeremy, Price, Daniel, Cannon, Emily, Bolte, Jan, De Ceuster, Frederik, Nuth, Joe, Sindel, Jan philip, Kee, Dylan, Gray, Malcolm D., Mellah, Ileyk El
Publikováno v:
A&A 651, A82 (2021)
Evolved low- to intermediate-mass stars are known to shed their gaseous envelope into a large, dusty, molecule-rich circumstellar nebula which typically develops a high degree of structural complexity. Most of the large-scale, spatially correlated st
Externí odkaz:
http://arxiv.org/abs/2104.07297
Autor:
Homan, Ward, Montarges, Miguel, Pimpanuwat, Bannawit, Richards, Anita M. S., Wallstrom, Sofia H. J., Kervella, Pierre, Decin, Leen, Zijlstra, Albert, Danilovich, Taissa, de Koter, Alex, Menten, Karl, Sahai, Raghvendra, Plane, John, Lee, Kelvin, Waters, Rens, Baudry, Alain, Wong, Ka Tat, Millar, Tom J., Van de Sande, Marie, Lagadec, Eric, Gobrecht, David, Yates, Jeremy, Price, Daniel, Cannon, Emily, Bolte, Jan, De Ceuster, Frederik, Herpin, Fabrice, Nuth, Joe, Sindel, Jan Philip, Kee, Dylan, Grey, Malcolm D., Etoka, Sandra, Jeste, Manali, Gottlieb, Carl A., Gottlieb, Elaine, McDonald, Iain, Mellah, Ileyk El, Muller, Holger S. P.
Publikováno v:
A&A 644, A61 (2020)
The nebular circumstellar environments of cool evolved stars are known to harbour a rich morphological complexity of gaseous structures on different length scales. A large part of these density structures are thought to be brought about by the intera
Externí odkaz:
http://arxiv.org/abs/2010.05509
Autor:
van der Tak, Floris, Shipman, Russ, Jacq, Thierry, Herpin, Fabrice, Braine, Jonathan, Wyrowski, Friedrich
(Abridged) We use HIFI maps of the 987 GHz H2O 2(02)-1(11) emission to measure the sizes and shapes of 19 high-mass protostellar envelopes. To identify infall, we use HIFI spectra of the optically thin C18O 9-8 and H2O-18 1(11)-0(00) lines. The high-
Externí odkaz:
http://arxiv.org/abs/1903.11305
Autor:
Shipman, Russell F., van der Tak, Floris F. S, Wyrowski, Friedrich, Herpin, Fabrice, Frieswijk, Wilfred
Publikováno v:
A&A 570, A51 (2014)
Context. The earliest phases of high-mass star formation are poorly understood. Aims. Our goal is to determine the physical conditions and kinematic structure of massive star-forming cloud clumps. Methods. We analyze H$_2$O 557 GHz line profiles obse
Externí odkaz:
http://arxiv.org/abs/1408.1515
We estimate the turbulent ambipolar diffusion length scale and magnetic field strength in the massive dense cores CygX-N03 and CygX-N53, located in the Cygnus-X star-forming region. The method we use requires comparing the velocity dispersions in the
Externí odkaz:
http://arxiv.org/abs/1308.3854
Autor:
Foster, Jonathan B., Rathborne, Jill M., Sanhueza, Patricio, Claysmith, Chris, Whitaker, J. Scott, Jackson, James M., Mascoop, Joshua L., Wienen, Marion, Breen, Shari L., Herpin, Fabrice, Duarte-Cabral, Ana, Csengeri, Timea, Contreras, Yanett, Indermuehle, Balt, Barnes, Peter J., Walsh, Andrew J., Cunningham, Maria R., Britton, Tui R., Voronkov, Maxim A., Urquhart, James S., Alves, João, Jordan, Christopher H., Hill, Tracey, Hoq, Sadia, Brooks, Kate J., Longmore, Steven N.
We characterize the Millimeter Astronomy Legacy Team 90 GHz (MALT90) Survey and the Mopra telescope at 90 GHz. We combine repeated position-switched observations of the source G300.968+01.145 with a map of the same source in order to estimate the poi
Externí odkaz:
http://arxiv.org/abs/1306.0560
Autor:
van der Tak, Floris, Chavarria, Luis, Herpin, Fabrice, Wyrowski, Friedrich, Walmsley, Malcolm, van Dishoeck, Ewine, Team, the WISH Coordinating
To understand the origin of water line emission and absorption during high-mass star formation, we decompose high-resolution Herschel-HIFI line spectra toward 19 high-mass star-forming regions into three distinct physical components. Protostellar env
Externí odkaz:
http://arxiv.org/abs/1304.2949
This paper reviews the first results of observations of H2O line emission with Herschel-HIFI towards high-mass star-forming regions, obtained within the WISH guaranteed time program. The data reveal three kinds of gas-phase H2O: `cloud water' in cold
Externí odkaz:
http://arxiv.org/abs/1012.4943
Publikováno v:
Astronomy & Astrophysics 504, 3 (2009) 853-867
Chemical composition of the massive cores forming high-mass stars can put some constrains on the time scale of the massive star formation: sulphur chemistry is of specific interest due to its rapid evolution in warm gas and because the abundance of s
Externí odkaz:
http://arxiv.org/abs/0906.1122
The origin of magnetism around AGB stars is uncertain. If these stars drive a dynamo, it cannot be sufficient to generate a strong global field, otherwise the observed X-ray luminosities would be higher. Other explanations for the circular polarizati
Externí odkaz:
http://arxiv.org/abs/0809.0359