SIMBAD references

2005ApJ...619L.175A - Astrophys. J., 619, L175-L178 (2005/February-1)

Submillimeter array observations of disks in the SR 24 multiple star system.

ANDREWS S.M. and WILLIAMS J.P.

Abstract (from CDS):

We present high-resolution aperture synthesis images from the Submillimeter Array of the 225 GHz (1.3 mm) continuum and 12CO J=2-1 line emission from the disks around components of the hierarchical triple system SR 24, located in the Ophiuchus star-forming region. The most widely separated component, SR 24 S (with a projected semimajor axis a=832 AU), has a circumstellar disk with properties typical of those around single T Tauri stars. The binary SR 24 N (a=32 AU) is undetected in the continuum but has strong, resolved CO emission that likely originates in a circumbinary disk with a central gap. The data constrain the total disk mass in the SR 24 N system to be ≲10–3 Mand indicate that the depletion of CO onto dust grains is not more than 100 times larger than the mean value in the interstellar medium. The SR 24 N disk is unusual in that it is only detected in line emission. It is possible that other low-mass disks around binaries and single stars may have been missed in single-dish continuum surveys.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: Close - Stars: Circumstellar Matter - Stars: Individual: Alphanumeric: SR 24

CDS comments: QSO J1743-038 not identified

Simbad objects: 10

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2019.09.17-13:19:49

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