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J/AJ/136/1067    New beta Lyrae and Algol candidates in NSVS (Hoffman+, 2008)

New β Lyrae and Algol candidates from the Northern Sky Variability Survey. Hoffman D.I., Harrison T.E., Coughlin J.L., McNamara B.J., Holtzman J.A., Taylor G.E., Vestrand W.T. <Astron. J., 136, 1067-1078 (2008)> =2008AJ....136.1067H
ADC_Keywords: Binaries, eclipsing ; Photometry, infrared Keywords: binaries: eclipsing Abstract: We have classified 409 objects in the Northern Sky Variability Survey (NSVS) as new beta Lyrae or Algol-type eclipsing binaries. These candidates have outside of eclipse magnitudes of ∼10-13. Through automated Fourier analysis routines and some manual inspection, we list the period, eclipse depths, coordinates, an estimate of the time of primary eclipse, and the 2MASS colors for these candidates. This list of new beta Lyrae type candidates greatly increases the number of known systems of this type. We have also identified 37 candidate low-mass, main-sequence pairs (M1,2<1M,T<5500K) in the NSVS database. If confirmed, these systems will greatly increase the number of such low-mass systems known as well as help constrain atmospheric models for these types of stars. Description: The data used in the analysis are from the ROTSE-I project, which is archived in the SkyDOT database (http://skydot.lanl.gov; Wozniak et al. 2004AJ....127.2436W). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 101 409 New candidate β Lyrae table2.dat 102 95 Refined candidate β Lyrae table3.dat 64 103 Known β Lyrae
See also: B/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2011) J/AJ/128/2965 : Red variables in the NSVS (Williams+, 2004) J/AJ/133/1470 : TAROT suspected variable star catalog (Damerdji+, 2007) http://skydot.lanl.gov/nsvs/nsvs.php : NSVS Home Page Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 9 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000) 11- 19 F9.5 deg DEdeg Declination in decimal degrees (J2000) 21- 28 I8 --- NSVS Object identification number (G1) 30- 37 F8.5 d Per Period from Fourier analysis 39- 44 F6.3 mag J-H 2MASS (J-H) color index 46- 51 F6.3 mag H-Ks 2MASS (H-Ks) color index 53- 58 F6.3 mag Ksmag 2MASS Ks band magnitude 60- 65 F6.3 mag Vmag Median ROTSE visual magnitude from NSVS database 67- 71 F5.3 mag e_Vmag Average photometric error in ROTmag 73- 77 F5.3 mag Dmag1 Primary (deepest) eclipse depth 79- 83 F5.3 mag Dmag2 Secondary eclipse depth 85- 95 F11.6 d Tmin Modified Julian Date time of primary eclipse minimum 97-101 A5 --- Class Candidate classification (2)
Note (2): Candidate classification class as follows: LMB = probable low-mass binary W UMa = probable W Ursa Majoris type system
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 9 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000) 11- 19 F9.5 deg DEdeg Declination in decimal degrees (J2000) 21- 28 I8 --- NSVS Object identification number (G1) 30- 38 F9.6 d pPer ? GCVS period 40- 47 F8.5 d cPer Current period determined in this paper 49- 54 F6.3 mag J-H 2MASS (J-H) color index 56- 61 F6.3 mag H-K 2MASS (H-Ks) color index 63- 68 F6.3 mag Ksmag 2MASS Ks band magnitude 70- 80 F11.6 d Tmin Modified Julian Date time of primary eclipse minimum 82- 91 A10 --- pClass GCVS classification (2) 93-102 A10 --- cClass Current classification (2)
Note (2): Classification codes (not exhaustive) as follows: BL = β Lyrae EB = Eclipsing Binary V = Variable star
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 9 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000) 11- 19 F9.5 deg DEdeg Declination in decimal degrees (J2000) 21- 28 I8 --- NSVS Object identification number (G1) 30- 40 F11.8 d pPer GCVS period 42- 49 F8.5 d cPer Current period determined in this paper 51- 61 F11.6 d Tmin Modified Julian Date time of primary eclipse minimum 63- 64 I2 --- Ref Reference (2)
Note (2): References as follows: 1 = Samus & Durlevich (2004, Cat. B/gcvs) 2 = Otero (2008OEJV...83....1O) 3 = Damerdji et al. (2007, Cat. J/AJ/133/1470)
Global notes: Note (G1): The NSVS identification number of the object, but other synonym names in the NSVS can exist.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 06-Apr-2011
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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