Access to Astronomical Catalogues

← Click to display the menu
J/ApJ/657/884    Spectroscopy of TTau and Herbig Ae/Be candidates  (Lee+, 2007)

Triggered star formation by massive stars. Lee H.-T., Chen W.P. <Astrophys. J., 657, 884-896 (2007)> =2007ApJ...657..884L
ADC_Keywords: Associations, stellar ; Stars, pre-main sequence ; Spectroscopy Keywords: ISM: clouds - ISM: molecules - stars: formation - stars: pre-main sequence Abstract: We present our diagnosis of the role that massive stars play in the formation of low- and intermediate-mass stars in OB associations (the lambda Ori region, Ori OB1, and Lac OB1 associations). Description: The spectra of bright CTTS and HAeBe candidates were taken at the Beijing Astronomical Observatory (BAO) and at the Kitt Peak National Observatory (KPNO). At the BAO, low-dispersion spectra with a dispersion of 200Å/mm, corresponding to 4.8Å/pix, were taken with the 2.16m optical telescope from 2003 October 31 to November 3, and on 2004 September 5-6. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 125 40 CTTS and CTTS Candidates table4.dat 87 13 Herbig Ae/Be Stars table5.dat 66 46 Non-PMS Stars
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 2 I2 --- [LC2007] Sequential number (G1) 4- 20 A17 --- 2MASS 2MASS designation (JHHMMSSss+DDMMSSs) 22- 60 A39 --- EmLines Emission line(s) (G2) 62 A1 --- Li [ANL] Li lines presence (3) 64- 67 A4 --- Obs [K, B] Observation (K=KPNO, B=BAO) 69-125 A57 --- Rem Remarks
Note (3): Presence of Lithium as follows: A = absorption N = no absorption L = low spectral resolution in BAO
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 2 I2 --- [LC2007] Sequential number (G1) 4- 20 A17 --- 2MASS 2MASS designation (JHHMMSSss+DDMMSSs) 22- 28 A7 --- EmLines Emission line(s) (G2) 30- 32 A3 --- SpT Spectral type 34- 37 A4 --- Obs [K, B] Observation (K=KPNO, B=BAO) 39- 87 A49 --- Rem Remarks
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 2 I2 --- [LC2007] Sequential number 4- 20 A17 --- 2MASS 2MASS designation (JHHMMSSss+DDMMSSs) 22- 28 A7 --- SpT Spectral type 30- 33 A4 --- Obs [K, B] Observation (K=KPNO, B=BAO) 35- 66 A32 --- Rem Remarks
Global notes: Note (G1): Stars 1-31 and 41-48 are in the Orion region, stars 32-40 and 49-53 are in the Lacerta region. Note (G2): Line definition abbreviations: H = Hα Ca = CaII [K,H (3934,3968Å), and/or IR triplet (8498,8542,8662Å)] He = He (5876Å) O = [OI] (6300Å) S = [SII] (6717 Å) Fe = FeII (4924 Å) The number following H, O, S, are the equivalent widths of Hα, [OI], and [SII], in angstrom units, respectively.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 29-May-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact