Zobrazeno 1 - 10
of 50
pro vyhledávání: '"George F. Mitchell"'
Autor:
George F. Mitchell, Tomomi Watanabe
Publikováno v:
The Astronomical Journal. 136:1947-1963
NGC 2024 is a star-forming region in Orion B that contains a dense molecular ridge. A number of dense cores are seen by their dust emission. This area is investigated using observations of four formaldehyde transitions—namely, 303 → 202, 322 →
Autor:
Per Friberg, Jeremy Yates, Gary A. Fuller, Rene Plume, Andy Gibb, John Richer, Tom J. Millar, Harold M. Butner, Marco Spaans, J. Hatchell, George F. Mitchell, J. G. A. Wouterloot, Frank Helmich, Glenn J. White, Emmanuel Caux, M. Zhu, Toby J. T. Moore, Jane V. Buckle, Serena Viti, J. E. Bowey, E. F. van Dishoeck, F. F. S. van der Tak, Cecilia Ceccarelli, Mark Thompson, Volker Ossenkopf, A. G. G. M. Tielens, M. Roellig, H. Roberts, H. E. Matthews, Michiel R. Hogerheijde, B. Weferling, Peter Schilke, J. M. C. Rawlings
Publikováno v:
Publications of the Astronomical Society of the Pacific
Publications of the Astronomical Society of the Pacific, Astronomical Society of the Pacific, 2007, 119, pp.102. ⟨10.1086/511161⟩
Publications of the Astronomical Society of the Pacific, 119(851), 102-111
Publications of the Astronomical Society of the Pacific, Astronomical Society of the Pacific, 2007, 119, pp.102. ⟨10.1086/511161⟩
Publications of the Astronomical Society of the Pacific, 119(851), 102-111
International audience; Stars form in the densest, coldest, most quiescent regions of molecular clouds. Molecules provide the only probes that can reveal the dynamics, physics, chemistry, and evolution of these regions, but our understanding of the m
Autor:
George F. Mitchell, Nicholas F. H Tothill, G. Serra, Roy Booth, Kalevi Mattila, T. Liljeström, Bengt Larsson, P. A. Feldman, Christine D. Wilson, Per Bergman, Pierre Encrenaz, Michael Lindqvist, F. von Schéele, John H. Black, Maryvonne Gerin, Edith Falgarone, L. Nordh, G. Olofsson, E. M. Gregersen, René Liseau, L. E. B. Johansson, Michael Olberg, I. Ristorcelli, Sun Kwok, Jacques Crovisier, Åke Hjalmarson, Urban Frisk, Kevin Volk, V. Buat, Alain Lecacheux, Aa. Sandqvist, H. G. Floren, Peter F. Bernath, Michel Fich, A. O. H. Olofsson, Tatsuhiko I. Hasegawa, Laurent Pagani, Tommy Wiklind, Jorma Harju, Charles L. Curry
Publikováno v:
Scopus-Elsevier
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2003, 402, pp.L77-L81. ⟨10.1051/0004-6361:20030344⟩
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2003, 402, pp.L77-L81. ⟨10.1051/0004-6361:20030344⟩
For the first time, a search has been conducted in our Galaxy for the 119 GHz transition connecting to the ground state of O2, using the Odin satellite. Equipped with a sensitive 3 mm receiver (Tsy ...
Autor:
Laurent Pagani, Urban Frisk, Kevin Volk, T. Liljeström, G. Serra, George F. Mitchell, Sun Kwok, E. M. Gregersen, Pierre Encrenaz, E. Falgarone, Michael Olberg, I. Ristorcelli, Jorma Harju, Lars E B Johansson, Roy Booth, Nicholas F. H Tothill, P. A. Feldman, Maryvonne Gerin, Charles L. Curry, K. Mattila, René Liseau, Rene Plume, M. Fich, Peter F. Bernath, G. Olofsson, Alain Lecacheux, V. Buat, H. G. Floren, Fredrik von Schéele, John H. Black, L. Nordh, Åke Hjalmarson, Christine D. Wilson, Tetsuo Hasegawa, Per Bergman, Alexis Brandeker, Aa. Sandqvist, Bengt Larsson
Publikováno v:
Astronomy & Astrophysics. 402:L73-L76
Odin has successfully observed the molecular core rho Oph A in the 572.5 GHz rotational ground state line of ammonia, NH3 (J,K = 1,0 - 0,0). The interpretation of this result makes use of complementary molecular line data obtained from the ground (C1
Publikováno v:
The Astrophysical Journal. 560:841-852
This paper reports new submillimeter molecular line observations of NGC 7129, a reflection nebula and star-forming region. Maps of 12CO and 13CO 2-1 and 3-2 emission show a cavity surrounded by bright ridges of denser molecular gas. Known molecular o
Publikováno v:
The Astrophysical Journal. 559:307-317
We present results from a survey of a 900 arcmin2 region of the Orion B molecular cloud, including NGC 2068, NGC 2071, and HH 24/25/26, at 850 μm using the Submillimeter Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope. Follo
Publikováno v:
The Astrophysical Journal. 507:726-731
We present the results of a search for CO 1 ? 0 emission from NGC 147 and M32, two of the four dwarf elliptical companions of M31. Return of gas from evolved stars to the interstellar medium of these galaxies should have resulted in detections, but w
Publikováno v:
The Astrophysical Journal. 499:209-220
We present CO 1 → 0 and 2 → 1 observations of NGC 205, which is a dwarf elliptical galaxy and a companion to M31. It has long been suggested that NGC 205 has interacted with M31 in the past. The total mass of gas (molecular, atomic, and X-ray emi
Autor:
T. I. Hasegawa, Jean-Pierre Maillard, George F. Mitchell, Jean Giannakopoulou, Henry E. Matthews
Publikováno v:
The Astrophysical Journal. 487:346-364
The central region of the Monoceros R2 molecular cloud has been studied using molecular line maps, maps in continuum emission, and an M-band (4.7 μm) absorption spectrum toward Mon R2 IRS 3. Maps were made in the emission lines CO (3-2) H2CO (51,5-4
Publikováno v:
The Astrophysical Journal. 483:L127-L130
We have made high-resolution (4'') observations of the 2.6 mm continuum and CO (1-0) line emission associated with the young stellar object DG Tau B. The aperture-synthesis CO map clearly shows that redshifted emission is symmetrically distributed ab