Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Jonathan B. Foster"'
Autor:
Patricio Sanhueza, James M. Jackson, Jill Rathborne, David Allingham, Steven N. Longmore, J. S. Whitaker, Jonathan B. Foster, Ian W. Stephens, Yanett Contreras
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, 870(1), 5
The Astrophysical Journal, 870(1), 5
Using molecular line data from the Millimetre Astronomy Legacy Team 90 GHz Survey (MALT90), we have searched the optically thick \hcop\, line for the "blue asymmetry" spectroscopic signature of infall motion in a large sample of high-mass, dense mole
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea06b428ebb3abf460630351a42a9e80
https://doi.org/10.3847/1538-4357/aaef84
https://doi.org/10.3847/1538-4357/aaef84
Autor:
Steven R. Majewski, Nathan De Lee, David L. Nidever, Jacob Skinner, Martin Fernandez, Michael R. Meyer, Richard Ballantyne, S. Drew Chojnowski, G. W. Roberts, Kevin R. Covey, Nicola Da Rio, Jonathan C. Tan, Gail Zasowski, Jonathan B. Foster, Keivan G. Stassun, Nicholas W. Troup, Michiel Cottaar, A. M. Reyna
We present radial velocity measurements for 70 high confidence, and 34 potential binary systems in fields containing the Perseus Molecular Cloud, Pleiades, NGC 2264, and the Orion A star forming region. 18 of these systems have been previously identi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64fb9bff26e6fd2e54206e44839457c7
Autor:
Andrés E. Guzmán, Jill Rathborne, S. P. Whitaker, Patricio Sanhueza, Yanett Contreras, Jonathan B. Foster, James M. Jackson
Publikováno v:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (ISSN 0035-8711), 466, 340-354
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (ISSN 0035-8711)
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (ISSN 0035-8711)
In the Milky Way there are thousands of stellar clusters each harboring from a hundred to a million stars. Although clusters are common, the initial conditions of cluster formation are still not well understood. To determine the processes involved in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d1201e0d520dc23844a88fcdb775c0c
Autor:
James Di Francesco, D. Anish Roshi, Jonathan B. Foster, Matthew Camarata, James M. Jackson, Toby J. T. Moore, Ian W. Stephens, Andrew Walsh, Robert Loughnane, Jill Rathborne, S. P. Whitaker, Taylor Hogge, Patricio Sanhueza, Steven N. Longmore
Publikováno v:
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
The Radio Ammonia Mid-Plane Survey (RAMPS) is a molecular line survey that aims to map a portion of the Galactic midplane in the first quadrant of the Galaxy (l = 10 deg - 40 deg, |b| < 0.4 deg) using the Green Bank Telescope. We present results from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f869170b34ae8ec32e94ede0bb12880a
https://doi.org/10.3847/1538-4365/aacf94
https://doi.org/10.3847/1538-4365/aacf94
Autor:
Steve Majewski, K. M. Flaherty, Jonathan B. Foster, Jinyoung Serena Kim, Keivan G. Stassun, Michael R. Meyer, John J. Tobin, Kevin R. Covey, Michiel Cottaar, Kaike Pan, Gail Zasowski, David L. Nidever, Nicholas C. Cullen, Michael F. Skrutskie, Jonathan C. Tan, S. Drew Chojnowski, Nicola Da Rio
We present the results of the SDSS APOGEE INfrared Spectroscopy of Young Nebulous Clusters program (IN-SYNC) survey of the Orion A molecular cloud. This survey obtained high resolution near infrared (NIR) spectroscopy of about 2700 young pre-main seq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ce5ec5e755ef942a46c747528f6fa3c
http://arxiv.org/abs/1511.04147
http://arxiv.org/abs/1511.04147
Autor:
James M. Jackson, Lise Deharveng, Manash R. Samal, Annie Zavagno, M. R. Pestalozzi, Jill Rathborne, D. Brevot, G. Leleu, Sergio Molinari, Jonathan B. Foster, L. D. Anderson, Ana Duarte-Cabral
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2015, 582, 〈10.1051/0004-6361/201423835〉
Astronomy and Astrophysics-A&A, EDP Sciences, 2015, 582, ⟨10.1051/0004-6361/201423835⟩
Astronomy and Astrophysics-A&A, 2015, 582, ⟨10.1051/0004-6361/201423835⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2015, 582, 〈10.1051/0004-6361/201423835〉
Astronomy and Astrophysics-A&A, EDP Sciences, 2015, 582, ⟨10.1051/0004-6361/201423835⟩
Astronomy and Astrophysics-A&A, 2015, 582, ⟨10.1051/0004-6361/201423835⟩
Our goal is to identify bipolar HII regions and to understand their morphology, their evolution, and the role they play in the formation of new generations of stars. We use the Spitzer and Herschel Hi-GAL surveys to identify bipolar HII regions. We s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e94fdb9ede96dd8a8735d4f1de152d18
https://hal.archives-ouvertes.fr/hal-01439774
https://hal.archives-ouvertes.fr/hal-01439774
Autor:
Jonathan B. Foster, Nate Bastian, James M. Jackson, Yanett Contreras, J. M. D. Kruijssen, Jill Rathborne, Steven N. Longmore, Daniel Walker
Whilst young massive clusters (YMCs; $M$ $\gtrsim$ 10$^{4}$ M$_{\odot}$, age $\lesssim$ 100 Myr) have been identified in significant numbers, their progenitor gas clouds have eluded detection. Recently, four extreme molecular clouds residing within 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52c46a17eee88fec2ef1756d98d18122
http://arxiv.org/abs/1502.03822
http://arxiv.org/abs/1502.03822
Autor:
Jonathan B. Foster, Sadia Hoq, Jill Rathborne, J. Scott Whitaker, James Jackson, Patricio Sanhueza, Ian W. Stephens
The Millimetre Astronomy Legacy Team 90 GHz (MALT90) survey has detected high-mass star-forming clumps with anomalous N$_2$H$^+$/HCO$^+$(1-0) integrated intensity ratios that are either unusually high ("N$_2$H$^+$ rich") or unusually low ("N$_2$H$^+$
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1db06261094cb45cea2133e5be0e9f64
http://arxiv.org/abs/1501.04965
http://arxiv.org/abs/1501.04965
Autor:
Nami Sakai, Satoshi Yamamoto, Tomoya Hirota, Kenji Furuya, James M. Jackson, Patricio Sanhueza, Yuri Aikawa, Takeshi Sakai, Jonathan B. Foster
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, 803(2), 70
The Astrophysical Journal, 803(2), 70
We have observed the clump G34.43+00.24 MM3 associated with an infrared dark cloud in DNC $J$=3--2, HN$^{13}$C $J$=3--2, and N$_2$H$^+$ $J$=3--2 with the Atacama Large Millimeter/submillimeter Array (ALMA). The N$_2$H$^+$ emission is found to be rela
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b34044dc642125c88eaa8a81578936f
https://hdl.handle.net/1887/48535
https://hdl.handle.net/1887/48535
Publikováno v:
Proceedings of the International Astronomical Union. 9:182-184
The MALT90 survey targets more than 2000 high-mass star-forming clumps in the Galactic plane obtaining small maps around each of them, in 16 molecular lines at 90 GHz. By observing several thousand high-mass star forming clumps MALT90 aims to charact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::102889af9f642e2d3eaf4cda5da654ca
https://doi.org/10.1017/s1743921314000507
https://doi.org/10.1017/s1743921314000507