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Detailed Description of J/other/Ap/44.88
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Individual files can be fetched (via http) from
here
or via ftp from: ftp://cdsarc.u-strasbg.fr/pub/cats/J/other/Ap/44.88
The catalogue can be queried from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/other/Ap/44.88
This standardized document follows the rules of the Standard Description for Astronomical Catalogues. For those having to work on this catalogue using FORTRAN programs, this ReadMe file can be transformed into a f77-compliant program which reads the files making up this catalogue, in two versions: either a f77 program loading whole files into arrays, or a f77-program reading each data file line by line.
J/other/Ap/44.88 FBS 11th list of late-type stars (Gigoyan+, 2001)
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First Byurakan Spectral Sky Survey. Stars of late spectral types.
XI. Zone -7°<{delta}<-3°.
Gigoyan K.S., Abrahamyan H.V., Azzopardi M., Russeil D.
<Astrophysics, 44, 88 (2001)>
=2001Ap.....44...88G
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ADC_Keywords: Stars, late-type ; Spectral types ; Photometry
Abstract:
The eleventh list of faint late M and carbon type stars detected on
the plates of the First Byurakan Spectral Survey in zone
-7°<={delta}<=-3° and covering about 1000 square degrees is
presented. From 126 detected stars, 88 are newly discovered objects:
they are 6 carbon stars, 8 carbon star candidates, and 74 M-type
stars; among the latter 38 (26 PSC + 12 FSC) are unclassified IRAS
sources, and one object is an unclassified ROSAT source. Distances to
the 6 newly discovered early-type carbon stars are estimated.
Equatorial coordinates, red magnitudes, and spectral classes
determined from the Palomar E-charts are provided. The lack of optical
counterparts on Palomar O and E maps for two detected late M-type
stars indicates a large variability in brightnesses of these objects
(amplitude not smaller than 7.0 magnitude).
File Summary:
FileName Lrecl Records Explanations
× ReadMe 80 . This file
× table1.dat 64 88 List of the new M and C stars
× notes.dat 80 18 Individual notes
× table1_a.dat 88 88 Additional position and cross-identifications (1)
× notes_a.dat 80 34 Additional notes (1)
Note (1): additional data resulting from a research by Brian Skiff
in July 2002 -- see the "History" section below.
See also:
II/223 : First Byurakan Survey, Blue stellar objects (Abrahamian+, 1990-1996)
II/156 : IRAS Faint Source Catalog, |b| > 10, Version 2.0 (Moshir+ 1989)
II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)
J/other/Ap/41.356 : FBS stars of late spectral types. X (Gigoyan+, 1998)
J/other/Ap/44.328 : FBS stars of late spectral types. XII (Gigoyan+, 2001)
J/other/Ap/45.322 : FBS 13th list of late M and carbon stars (Gigoyan+, 2002)
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Seq Sequential number
4- 11 A8 --- FBS FBS designation
12 A1 --- m_FBS Multiplicity index on FBS
13 A1 --- n_FBS [*] *: note detailed in notes.dat file
15- 16 I2 h RAh Right ascension (2000)
18- 19 I2 min RAm Right ascension (2000)
21- 24 F4.1 s RAs Right ascension (2000)
26 A1 --- DE- Declination sign (2000)
27- 28 I2 deg DEd Declination (2000)
30- 31 I2 arcmin DEm Declination (2000)
33- 34 I2 arcsec DEs Declination (2000)
36- 41 A6 --- SpType Spectral type
42- 45 F4.1 mag Emag ? Palomar E (red) magnitude
47- 49 F3.1 mag O-E ? O-E (blue-red) color index
51- 64 A14 --- IRAS IRAS PSC (Cat. II/125) and FSC (Cat. II/156)
identifications
Byte-by-byte Description of file: notes.dat notes_a.dat
Bytes Format Units Label Explanations
1- 8 A8 --- FBS FBS designation
10- 80 A71 --- Note Text of the note
Byte-by-byte Description of file: table1_a.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential number, as in table1
6- 13 A8 --- FBS FBS designation, as in table1
14 A1 --- n_FBS [*] indicates a note in file "notes-a.dat"
17- 18 I2 h RAh ? Right ascension (J2000)
20- 21 I2 min RAm ? Right ascension (J2000)
23- 27 F5.2 s RAs ? Right ascension (J2000)
29 A1 --- DE- ? Declination sign (J2000)
30- 31 I2 deg DEd ? Declination (J2000)
33- 34 I2 arcmin DEm ? Declination (J2000)
36- 39 F4.1 arcsec DEs ? Declination (J2000)
41 A1 --- r_DEs [AGgMT] Source of position (1)
43- 51 A9 --- GSC GSC designation (Cat. I/255)
53- 63 A11 --- IRAS designation (Cat. II/125 and II/156)
65- 69 A5 --- SpType Spectral type
71- 74 F4.1 mag Emag ? Palomar E (red) magnitude (2)
76- 78 F3.1 mag O-E ? O-E (blue-red) color index (2)
81- 84 F4.1 mag Vmag ? V magnitude from MkIII survey (II/230)
86- 88 F3.1 mag V-I ? V-I color from MkIII survey (II/230)
Note (1): the symbols mean the following sources:
A USNO-A2.0 (I/252)
G GSC-ACT (I/255)
g GSC-2.2 (I/271)
M 2MASS second release (B/2mass)
T Tycho-2 (2000A&A...357..367H, Cat. I/259)
Note (2): magnitudes and colors were determined using image diameters
on POSS-I prints.
History:
From electronic version of the journal
* 05-Aug-2002 (Brian Skiff, ):
Improved positions were derived from the recent astrometrical
catalogues, and the stars were matched against the GSC, IRAS PSC and
FSC, MSX, Dearborn and GCVS v4.1. Every star was searched with a 3'
radius in SIMBAD to find additional IDs. The notes include most of the
original comments; some entries have my comments added at the front
(all the external IDs given are new).
Using photometric data from the TASS MkIII survey (Cat. II/230,
2000PASP..112..397R), two columns showing V and V-I to 0.1-mag.
precision were added for stars with a close match in position (~5").
These help confirm the very-red nature of the stars.
Some of the stars are not especially red, and the spectral types
cannot be as late as indicated. This is likely to be the case when
there is no IRAS or MSX detection. Two stars do not appear on extant
digitized sky surveys. Rather than being extraordinarily red, I
suspect these are instead plate flaws in the Byurakan material. Such
extreme red objects would not have escaped being detected in IRAS or
MSX surveys, and are unlikely to be missing on two or three epochs of
the sky surveys (POSS-I and UK Schmidt).
References:
Abrahamyan & Gigoyan, Paper I, 37<DE<39 1989Afz....31..601A
Abrahamyan & Gigoyan, Paper II, 41<DE<45 1990Afz....32..501A
Abrahamyan & Gigoyan, Paper III, 33<DE<37 1990Afz....33..317A
Abrahamyan & Gigoyan, Paper IV, 61<DE<65 1993Afz....36..431A
Abrahamyan & Gigoyan, Paper V, 65<DE<69 1994Ap.....37..322A
Abrahamyan & Gigoyan, Paper VI, 69<DE<77 1995Ap.....38..115A
Abrahamyan et al., Paper VII, 76<DE<80 1995Ap.....38..195A
Gigoyan & Abrahamyan, Paper VIII, 80<DE<90 1996Ap.....39..310G
Abrahamyan et al., Paper IX, -15<DE<-11 1997Ap.....40..131A
Gigoyan et al., Paper X, -11<DE<-7 1998Ap.....41..356G
Gigoyan et al., Paper XII, -13<DE<1 2001Ap.....44..328G
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(End) Patricia Bauer [CDS] 01-Mar-2002
