A candidate circumbinary Keplerian disk in G35.20-0.74 N: A study with ALMA
作者： Á. Sánchez-Monge , R. Cesaroni , M. T. Beltrán , M. S. N. Kumar , T. Stanke
DOI: 10.1051/0004-6361/201321134
关键词: Star formation 、 Circumbinary planet 、 Stellar mass 、 Binary system 、 Astronomy 、 Central mass 、 Accretion (astrophysics) 、 Vector field 、 Physics 、 Astrophysics 、 Overtone
摘要: We report on ALMA observations of continuum and molecular line emission with 0 ''.4 resolution towards the high-mass star-forming region G35.20-0.74 N. Two dense cores are detected in typical hot-core tracers (e. g., CH3CN) that reveal velocity gradients. In one these cores, field can be fitted an almost edge-on Keplerian disk rotating about a central mass similar to 18 M-circle dot. This finding is consistent results recent study CO first overtone bandhead at 2.3 mu m The radius greater than or 2500 au 3 To reconcile observed bolometric luminosity (similar 3x10(4) L-circle dot) estimated stellar dot, we propose latter total binary system.
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T. Velusamy, K. A. Marsh, C. A. Beichman, C. R. Backus, T. J. Thompson, HiRes DECONVOLUTION OF SPITZER INFRARED IMAGES The Astronomical Journal. ,vol. 136, pp. 197- 211 ,(2008) , 10.1088/0004-6256/136/1/197
Rosa Izela Diaz‐Miller, Jose Franco, Steven N. Shore, Photoionized and Photodissociated Regions around Main-Sequence Stars The Astrophysical Journal. ,vol. 501, pp. 192- 206 ,(1998) , 10.1086/305793
G. A. Fuller, A. A. Zijlstra, S. J. Williams, AN INFRARED JET FROM A HIGH-MASS YOUNG STAR The Astrophysical Journal. ,vol. 555, ,(2001) , 10.1086/321729
Robert A. Benjamin, E. Churchwell, Brian L. Babler, T. M. Bania, Dan P. Clemens, Martin Cohen, John M. Dickey, Rémy Indebetouw, James M. Jackson, Henry A. Kobulnicky, Alex Lazarian, A. P. Marston, John S. Mathis, Marilyn R. Meade, Sara Seager, S. R. Stolovy, C. Watson, Barbara A. Whitney, Michael J. Wolff, Mark G. Wolfire, GLIMPSE. I. An SIRTF Legacy Project to Map the Inner Galaxy Publications of the Astronomical Society of the Pacific. ,vol. 115, pp. 953- 964 ,(2003) , 10.1086/376696
G. C. Brebner, B. Heaton, R. J. Cohen, S. R. Davies, MERLIN and VLA observations of the star-forming region G35.2-0.7N Monthly Notices of the Royal Astronomical Society. ,vol. 229, pp. 679- 689 ,(1987) , 10.1093/MNRAS/229.4.679
Robert Estalella, Rainer Mauersberger, Jose M. Torrelles, Guillem Anglada, Jose F. Gomez, Rosario Lopez, Dirk Muders, The molecular cores in the L1287, AFGL 5142, and IRAS 20126 + 4104 regions The Astrophysical Journal. ,vol. 419, pp. 698- 706 ,(1993) , 10.1086/173520
K.-S. Wang, F. F. S. van der Tak, M. R. Hogerheijde, Kinematics of the inner thousand AU region around the young massive star AFGL 2591-VLA3: a massive disk candidate? Astronomy and Astrophysics. ,vol. 543, pp. 22- ,(2012) , 10.1051/0004-6361/201117044
C. Codella, R. Cesaroni, A. López-Sepulcre, M. T. Beltrán, R. Furuya, L. Testi, Looking for high-mass young stellar objects: H2O and OH masers in ammonia cores Astronomy and Astrophysics. ,vol. 510, ,(2010) , 10.1051/0004-6361/200913371
L. T. Little, W. R. F. Dent, B. Heaton, S. R. Davies, G. J. White, The rotating interstellar disc in G35.2-0.74 Monthly Notices of the Royal Astronomical Society. ,vol. 217, pp. 227- 238 ,(1985) , 10.1093/MNRAS/217.2.227
W. R. F. Dent, L. T. Little, S. Sato, M. Ohishi, T. Yamashita, Near-infrared observations of the bipolar outflow source G35.2N Monthly Notices of the Royal Astronomical Society. ,vol. 217, pp. 217- 226 ,(1985) , 10.1093/MNRAS/217.2.217