J/ApJ/597/555 IR photometry of IC 348 young brown dwarfs (Mainzer+, 2003)
Using narrowband photometry to detect young brown dwarfs in IC 348.
Mainzer A.K., Mclean I.S.
<Astrophys. J., 597, 555-565 (2003)>
=2003ApJ...597..555M 2003ApJ...597..555M
ADC_Keywords: Clusters, open ; Stars, pre-main sequence ; Photometry, infrared
Keywords: infrared: stars - stars: formation - stars: low-mass, brown dwarfs -
stars: pre-main-sequence
Abstract:
We report the discovery of a population of young brown dwarf
candidates in the open star cluster IC 348 and the development of a
new spectroscopic classification technique using narrowband
photometry. Observations were made using FLITECAM, the First Light
Camera for SOFIA, at the 3m Shane telescope at Lick Observatory.
FLITECAM is a new 1-5µm camera with an 8' field of view. Custom
narrowband filters were developed to detect absorption features of
water vapor (at 1.495µ) and methane (at 1.66µm) characteristic
of brown dwarfs. These filters enable spectral classification of stars
and brown dwarfs without spectroscopy.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 84 199 IC 348 sources detected by FLITECAM
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See also:
J/ApJ/497/736 : The young cluster IC 348 (Herbig, 1998)
J/ApJ/541/977 : Low-mass IMF in IC 348 (Najita+, 2000)
J/A+A/409/147 : J magnitude of IC 348 brown dwarfs (Preibisch+, 2003)
J/AJ/122/866 : X-ray sources in IC 348 from Chandra (Preibisch+, 2001)
J/ApJ/525/466 : Young low-mass stars and brown dwarfs in IC 348 (Luhman+, 1999)
J/A+A/324/549 : Deep UVBRI photometry in IC 348 (Trullols+ 1997)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Object name (1)
10 A1 --- n_Name [*] Dwarf candidate (2)
12- 20 A9 --- ID Other identification (1)
22- 28 A7 --- SpType Spectral type
30 I1 h RAh Hour of Right Ascension (J2000)
32- 33 I2 min RAm Minute of Right Ascension (J2000)
35- 39 F5.2 s RAs Second of Right Ascension (J2000)
40 A1 --- DE- Sign of Declination (J2000)
41- 42 I2 deg DEd Degree of Declination (J2000)
44- 45 I2 arcmin DEm Arcminute of Declination (J2000)
47- 50 F4.1 arcsec DEs Arcsecond of Declination (J2000)
52- 56 F5.2 mag Hmag The H band magnitude
58- 61 F4.2 mag e_Hmag Error in Hmag
63- 67 F5.2 mag 1.66mag The 1.66 micron band magnitude
69- 72 F4.2 mag e_1.66mag Error in 1.66mag
74- 78 F5.2 mag 1.495mag The 1.495 micron band magnitude
80- 83 F4.2 mag e_1.495mag Error in 1.495mag
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Note (1): Names:
MM NNN: This paper, Cl* IC 348 MM NNN in Simbad
H NN: Herbig (1998, Cat. J/ApJ/497/736), CL* IC 348 H NN in Simbad;
NTC NNN: Najita, Tiede, & Carr (2000, Cat. J/ApJ/541/977),
CL* IC 348 NTC in Simbad;
LRLL NNN: Luhman, Rieke, Lada, & Lada (1998ApJ...508..347L 1998ApJ...508..347L),
CL* IC 348 LRL NNN in Simbad.
Note (2): Note on Name:
* = considered potential M, L, and T dwarf candidates based
on their H2O and CH4 magnitudes.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 12-Jan-2004