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J/AJ/123/2597   Hα stars and HH objects near BRCs        (Ogura+, 2002)

Hα emission stars and Herbig-Haro objects in the vicinity of bright-rimmed clouds. Ogura K., Sugitani K., Pickles A. <Astron. J. 123, 2597 (2002)> =2002AJ....123.2597O
ADC_Keywords: H II regions ; Infrared sources ; Stars, pre-main sequence ; Stars, emission Keywords: H II regions - ISM: globules - ISM: Herbig-Haro objects - stars: formation - stars: pre-main-sequence Abstract: Bright-rimmed clouds (BRCs) found in H II regions are probably sites of triggered star formation due to compression by ionization/shock fronts. Many BRCs harbor IRAS point sources of low dust temperature. They also frequently contain a small cluster of near-IR stars that is elongated along the axis of the BRC. Here we present the results of our Hα grism spectroscopy and narrowband imaging observations of BRCs in search of candidate premain-sequence stars of the T Tauri, Herbig Ae/Be and related types, and Herbig-Haro (HH) objects. We have detected a large number (460) of Hα emission stars down to a limiting magnitude of about R=20 in and around all but two of the 28 BRCs observed. The present study has, for the first time, reached down nearly to the faintest classical T Tauri star population in OB associations. A total of 12 new HH objects have been found. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 69 28 Bright-Rimmed Clouds observed table5.dat 106 463 Detected Hα Emission Stars table7.dat 40 34 Herbig-Haro objects in/around BRCS
See also: V/104 : General Catalogue of Herbig-Haro Objects (Reipurth+, 1999) J/AJ/135/2323 : Updated and corrected Table 5 (Ikeda+, 2008) Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 8 A8 --- BRC BRC name 11- 27 A17 --- HII HII region name 28- 31 I4 pc Dist ? Distance 33- 34 I2 --- r_Dist ? References for Distance (1) 37- 47 A11 --- IRAS Associated IRAS source name 49- 50 I2 --- NHa Number of Hα stars 52- 63 A12 --- SName Simbad name of the BRC
Note (1): References: 1: MacConnell, 1968ApJS...16..275M 2: Savage et al., 1977ApJ...216..291S 3: Ishida, 1970PASJ...22..277I 4: Claria, 1974A&A....37..229C 5: Humphreys, 1978ApJS...38..309H 6: Bally & Scoville, 1980ApJ...239..121B 7: Matthews, 1979A&A....75..345M 8: Georgelin & Georgelin 1976. 9: Crampton & Fisher, 1974PDAO...14..283C 10: Seggewiss, 1968VeBon..79....1S 11: Herbst et al., 1982AJ.....87...98H 12: Strom et al., 1989ApJS...71..183S 13: Blaauw, 1964ARA&A...2..213B
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 8 A8 --- BRC The Bright-Rimmed Cloud name 10- 11 I2 --- Seq The Bright-Rimmed Cloud star number (1) 13- 14 I2 h RAh Hour of Right Ascension (J2000) 16- 17 I2 min RAm Minute of Right Ascension (J2000) 19- 22 F4.1 s RAs Second of Right Ascension (J2000) 23 A1 --- u_RAs [:] Indicates the RA accuracy is poor 25 A1 --- DE- Sign of the Declination (J2000) 26- 27 I2 deg DEd Degree of Declination (J2000) 29- 30 I2 arcmin DEm Arcminute of Declination (J2000) 32- 33 I2 arcsec DEs Arcsecond of Declination (J2000) 34 A1 --- u_DEs [:] Indicates the Dec accuracy is poor 36- 40 F5.1 0.1nm EqWid ? The Hα equivalent width in Angstroms 42- 43 A2 --- f_EqWid Eye estimate code for EqWid (2) 45 A1 --- u_EqWid [:] Indicates the EqWid accuracy is poor (3) 47-106 A60 --- Com Remarks
Note (1): Star numbers identifying the stars in the finding charts Figures 1a to 1z. In Simbad, the stars are identified as [OSP2002] BRC Seq, i.e. "[OSP2002] BRC 1 1" for "BRC01 1"Note (2): For stars where only eye estimates of their emission strengths Note (2): For stars where only eye estimates of their emission strengths were possible w = weak (0.5 to 2Å); m = moderate (2 to 5Å); s = strong (5 to 10Å); vs = very strong (over 10Å). Note (3): Poor accuracy because of the difficulty of continuum determination.
Byte-by-byte Description of file: table7.dat
Bytes Format Units Label Explanations
1- 2 I2 --- SFO ? BRC number (SFO NN in Simbad) 4- 17 A14 --- Knot HH knot name 20- 21 I2 h RAh Right ascension (J2000.0) 23- 24 I2 min RAm Right ascension (J2000.0) 26- 29 F4.1 s RAs Right ascension (J2000.0) 30 A1 --- u_RAs Uncertainty flag on RA 31 A1 --- DE- Declination sign (J2000.0) 32- 33 I2 deg DEd Declination (J2000.0) 35- 36 I2 arcmin DEm Declination (J2000.0) 38- 39 I2 arcsec DEs Declination (J2000.0) 40 A1 --- u_DEs Uncertainty flag on DE
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 17-Jun-2002
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

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