2013A&A...552L..10S


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.11CET13:40:45

2013A&A...552L..10S - Astronomy and Astrophysics, volume 552, L10-10 (2013/4-1)

A candidate circumbinary Keplerian disk in G35.20-0.74N: a study with ALMA.

SANCHEZ-MONGE A., CESARONI R., BELTRAN M.T., KUMAR M.S.N., STANKE T., ZINNECKER H., ETOKA S., GALLI D., HUMMEL C.A., MOSCADELLI L., PREIBISCH T., RATZKA T., VAN DER TAK F.F.S., VIG S., WALMSLEY C.M. and WANG K.-S.

Abstract (from CDS):

We report on ALMA observations of continuum and molecular line emission with 0.4" resolution towards the high-mass star-forming region G35.20-0.74N. Two dense cores are detected in typical hot-core tracers (e.g., CH3CN) that reveal velocity gradients. In one of these cores, the velocity field can be fitted with an almost edge-on Keplerian disk rotating about a central mass of ∼18M. This finding is consistent with the results of a recent study of the CO first overtone bandhead emission at 2.3µm towards G35.20-0.74N. The disk radius and mass are >2500 au and ∼3M. To reconcile the observed bolometric luminosity (∼3x104L) with the estimated stellar mass of 18M, we propose that the latter is the total mass of a binary system.

Abstract Copyright:

Journal keyword(s): stars: formation - ISM: individual objects: G35.20-0.74N - ISM: jets and outflows

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 GAL 174.20-00.08 Cld 05 30 45.9 +33 47 56           ~ 181 2
2 4C 09.57 BLL 17 51 32.81857318 +09 39 00.7284829   17.46 16.78 15.57   ~ 788 1
3 [DLW84] G35.2N HII 18 58 13.036 +01 40 36.00           ~ 89 0
4 IRAS 20126+4104 Y*O 20 14 25.8816186803 +41 13 36.869078243           B2.5-B0.5 389 0

    Equat.    Gal    SGal    Ecl

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2019.12.11-13:40:45

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