Extensive, high-speed gas around the Trapezium cluster of the Orion nebula (M42, NGC 1976)
نویسندگان
چکیده
منابع مشابه
The distance to the Orion Nebula Cluster
The distance to the Orion Nebula Cluster (ONC) is estimated using the rotational properties of its low-mass pre main-sequence (PMS) stars. Rotation periods, projected equatorial velocities and distance-dependent radius estimates are used to form an observational sin i distribution (where i is the axial inclination), which is modelled to obtain the distance estimate. A distance of 440± 34,pc is ...
متن کاملWide binaries in the Orion Nebula Cluster
Using proper motion data for 894 stars in the Orion Nebula Cluster (ONC) compiled by Jones & Walker in 1988, we search for binaries with apparent separations in the range 1000–5000 AU, and find an upper limit of three. Using a Monte Carlo method, we test the consistency of this result with two hypotheses: i) that the cluster contains a binary population identical to that found in the solar neig...
متن کاملRotation in the Orion Nebula Cluster
Eighteen small (4 arc-min square) fields within the Orion Nebula Cluster (ONC) have been photometrically monitored for one or more observing seasons between 1990 and 1999 with a CCD attached to the 0.6 m telescope at Van Vleck Observatory on the campus of Wesleyan University. Data were obtained exclusively in the Cousins I band on between 25 and 40 nights per season. Results from the first thre...
متن کاملThe Circumstellar Disk Mass Distribution in the Orion Trapezium Cluster
We present the results of a submillimeter interferometric survey of circumstellar disks in the Trapezium Cluster of Orion. We observed the 880μm continuum emission from 55 disks using the Submillimeter Array, and detected 28 disks above 3σ significance with fluxes between 6-70 mJy and rms noise between 0.7–5.3 mJy. Dust masses and upper limits are derived from the submillimeter excess above fre...
متن کاملLow - Mass Runaway Stars from the Orion Trapezium Cluster
In the course of a search for common proper motion binaries in the Jones & Walker (JW) catalogue of proper motions in the Orion Nebula Cluster, we came across several faint stars with proper motions larger than one arcsecond per century and probabilities of membership P larger than 0.90. Such stars are interesting because they could be low-mass runaway stars recently accelerated by n-body inter...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1993
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/262.1.l48