Results 31 to 40 of about 12,515 (261)
An Ionized Outflow in Orion-KL Source I?
The Astrophysical Journal, 2023 We present images at 6 and 14 GHz of Source I (SrcI) in the Kleinmann–Low Nebula in Orion. At higher frequencies, from 43 to 340 GHz, images of this source are dominated by thermal emission from dust in a 100 au diameter circumstellar disk, but at 6 and ...
Melvyn Wright +7 more
doaj +1 more source
V1647 Orionis (IRAS 05436-0007) : A New Look at McNeil's Nebula [PDF]
, 2004 We present a study of the newly discovered McNeil's nebula in Orion using the JHKs-band simultaneous observations with the near-infrared (NIR) camera SIRIUS on the IRSF 1.4m telescope.
Baba, D. +12 more
core +2 more sources
Stable Coronal X-Ray Emission over 20 yr of XZ Tau
The Astronomical Journal, 2023 XZ Tau AB is a frequently observed binary young stellar object in the Taurus Molecular Cloud; XZ Tau B has been classified as an EXOr object. We present new Chandra/HETG-ACIS-S observations of XZ Tau AB, complemented with variability monitoring of the ...
Steven M. Silverberg +5 more
doaj +1 more source
The APEX-CHAMP+ view of the Orion Molecular Cloud 1 core - Constraining the excitation with submillimeter CO multi-line observations [PDF]
, 2011 A high density portion of the Orion Molecular Cloud 1 (OMC-1) contains the prominent, warm Kleinmann-Low (KL) nebula that is internally powered by an energetic event plus a farther region in which intermediate to high mass stars are forming.
Bally +53 more
core +3 more sources
Turbulence in the Orion Nebula [PDF]
International Astronomical Union Colloquium, 1989 We have examined the radial and turbulent velocities of the Orion Nebula at the seeing limit, observing the [OIII]λ5007 line and the [OII]λ3727 doublet with the coudé feed system of the Kitt Peak National Observatory, at very high spatial and spectral resolution.
H.O. Castañeda, C.R. O’Dell
openaire +1 more source
Large Area Mapping at 850 Microns. V. Analysis of the Clump Distribution in the Orion A South Molecular Cloud [PDF]
, 2006 We present results from a 2300 arcmin^2 survey of the Orion A molecular cloud at 450 and 850 micron using the Submillimetre Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope.
Bonnor W. B. +8 more
core +2 more sources
Wide binaries in the Orion nebula cluster [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 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 ...
Scally, Aylwyn +2 more
openaire +2 more sources
A MUSE map of the central Orion Nebula (M 42) [PDF]
, 2015 We present a new integral-field spectroscopic dataset of the central part of the Orion Nebula (M 42), observed with the MUSE instrument at the ESO VLT. We reduced the data with the public MUSE pipeline.
Bacon, Roland +17 more
core +5 more sources
Observing and Reducing IFUs: INTEGRAL and PMAS—Properties of the Ionized Gas in HH 202
Advances in Astronomy, 2014 The reduction of integral field spectroscopy (IFS) data requires several stages and many repetitive operations to convert raw data into, typically, a large number of spectra.
Luis López-Martín
doaj +1 more source
Nature, 1877 IN NATURE, vol. xv. p. 201, in an account of the American Cambridge Observatory, it is stated that the nebula of Orion had not shown the slightest trace of resolvability under Lord Rosse's 3-feet reflector.
openaire +1 more source