J/AJ/130/1763 11.7µm point sources in Orion (Smith+, 2005)
Thermal dust emission from proplyds, unresolved disks, and shocks in the Orion
nebula.
Smith N., Bally J., Shuping R.Y., Morris M., Kassis M.
<Astron. J., 130, 1763-1777 (2005)>
=2005AJ....130.1763S 2005AJ....130.1763S
ADC_Keywords: H II regions ; Interstellar medium ; Stars, pre-main sequence
Keywords: H II regions - ISM: Herbig-Haro objects - ISM: jets and outflows -
planetary systems: protoplanetary disks - stars: formation -
stars: pre-main-sequence
Abstract:
We present a new 11.7µm mosaic image of the inner Orion Nebula
obtained with the T-ReCS instrument on Gemini South. The map covers
2.7'x1.6', with a diffraction-limited spatial resolution of 0.35"; it
includes the BN/KL region, the Trapezium, and OMC-1 South. Excluding
BN/KL, we detect 91 thermal-IR point sources, with 27 known proplyds
and over 30 "naked" stars showing no extended structure in Hubble
Space Telescope (HST) images.
Description:
Images of the Orion Nebula at 11.7µm (11.09-12.22µm) were
obtained on 2004 January 25 using T-ReCS on Gemini South.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 70 91 11.7µm point sources in Orion (excluding BN/KL)
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See also:
J/AJ/111/846 : Orion HST survey (O'Dell+ 1996)
J/AJ/113/1733 : Orion Nebula Cluster population (Hillenbrand 1997)
J/AJ/125/277 : High proper motions in central Orion nebula (O'dell+, 2003)
J/AJ/127/3456 : Internal velocities in the Orion Nebula (Doi+, 2004)
J/AJ/129/1534 : Mid-IR photometry in the Orion Nebula (Robberto+, 2005)
J/ApJS/160/353 : Membership of the Orion nebula population (Getman+, 2005)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Hour of Right Ascension (J2000.0)
4- 5 I2 min RAm Minute of Right Ascension (J2000.0)
7- 11 F5.2 s RAs Second of Right Ascension (J2000.0)
13 A1 --- DE- Sign of the Declination (J2000.0)
14- 15 I2 deg DEd Degree of Declination (J2000.0)
17- 18 I2 arcmin DEm Arcminute of Declination (J2000.0)
20- 23 F4.1 arcsec DEs Arcsecond of Declination (J2000.0)
25 A1 --- l_F11.7um [<] if F11.7um is an upper limit
26- 29 F4.2 Jy F11.7um Flux density Fν at 11.7µm
30 A1 --- u_F11.7um [)] Uncertainty flag on F11.7um
34- 65 A32 --- Note Name or comment (1)
67- 69 I3 --- MAX ? Designation from Robberto et al. (2005,
Cat. J/AJ/129/1534)
70 A1 --- u_MAX [)] Uncertainty flag on MAX (2)
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Note (1): The sources with an "O" are optically visible stars with no
extended proplyd structure in HST images (O'Dell & Wong 1996,
Cat. J/AJ/111/846) that nevertheless show detectable 11.7µm
thermal-IR emission from unresolved dusty disks.
"X" denotes an IR point source with no star or proplyd in the
list of O'Dell & Wong (1996, Cat. J/AJ/111/846), and the stars
θ1(A-E) (* tet01 Ori A in Simbad), members of OMC-1 South,
and known proplyds are identified by name.
Note (2): Uncertain identifications due to poor agreement in the coordinates.
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Nomenclature Notes:
Sources are [SBS2005] JHHMMSS.ss+DDMMSS.s in Simbad.
History:
From electronic version of the journal
(End) Marianne Brouty [CDS] 30-Dec-2005