J/A+A/477/67 Systematic search for M31 novae from Schmidt plates (Henze+, 2008)
A systematic search for novae in M31 on a large set of digitized archival
Schmidt plates.
Henze M., Meusinger H., Pietsch W.
<Astron. Astrophys., 477, 67-78 (2008)>
=2008A&A...477...67H 2008A&A...477...67H
ADC_Keywords: Galaxies, nearby ; Novae
Keywords: galaxies: individual: M 31 - novae, cataclysmic variables - catalogs
Abstract:
This paper reports on the detection of optical novae in our neighbour
galaxy M 31 based on digitized historical Tautenburg Schmidt plates.
The accurate positions of the detected novae lead to a much larger
database when searching for recurrent novae in M 31.
We conducted a systematic search for novae on 306 digitized Tautenburg
Schmidt plates covering a time span of 36 years from 1960 to 1996.
From the database of both ∼3x105 light curves and ≳106 detections
on only one plate per colour band, nova candidates were efficiently
selected by automated algorithms and subsequently individually
inspected by eye.
We report the detection of 84 nova candidates.
Description:
This work is based upon photographic plates taken in the years 1960 to
1996 with the Tautenburg Schmidt telescope (free aperture 1.34m,
focal length 4m). A single Tautenburg plate covers an unvignetted
field of 3.3°x3.3° with a plate scale of 51.4" per mm. With
554 plates in total, the M 31 field is the most frequently observed
field in the Tautenburg Schmidt archive. We selected a sample of 289
plates in the UBV bands, plus 17 blue-sensitized plates without filter
(NFBS).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table6.dat 82 21 Basic data for the previously known Tautenburg
nova candidates
table7.dat 82 12 Basic data for the previously known nova
candidates which have not been reported before
on Tautenburg plates
table8.dat 82 22 Basic data for the new nova candidates from the
present study
table9.dat 82 29 Basic data for the confirmed nova candidates
from the present study
notes.dat 80 75 Individual notes
lcurves.dat 54 355 Nova light curves
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See also:
J/A+A/465/375 : X-ray monitoring of optical novae in M31 (Pietsch+, 2007)
Byte-by-byte Description of file: table[6789].dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq Sequential number
3 A1 --- n_Seq [*] * indicates a note in notes.dat file
5- 12 F8.5 deg RAdeg Right ascension in decimal degrees (J2000)
14- 21 F8.5 deg DEdeg Declination in decimal degrees (J2000)
23- 26 F4.1 mag magmax ?=- Magnitude of the detected maximum, in Band
28 A1 --- Band [UBV] Colour band for the maximum detected
magnitude
30- 33 A4 --- --- [M31N]
34- 41 A8 --- M31N Object name (YYYY-MMA) (M31N YYYY-MMa in Simbad)
43- 60 A18 --- ONames Other name(s) (1)
62- 65 F4.1 arcsec d ? Position difference between the present study
and the previously published data
67- 69 I3 d t ? Time lag difference between the present study
and the previously published data (2)
71- 77 I7 d JD Julian date of maximum luminosity on Tautenburg
plates (3)
79- 82 I4 yr Year Year of the outburst
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Note (1): Other names where
M67 = Moffat (1967AJ.....72.1356M 1967AJ.....72.1356M),
B68 = Borngen (1968AN....291...19B 1968AN....291...19B)
M75 = Meinunger (1971MitVS...5..177M 1971MitVS...5..177M)
R = Rosino (1964AnAp...27..498R 1964AnAp...27..498R, 1973A&AS....9..347R 1973A&AS....9..347R, 1989AJ.....97...83R 1989AJ.....97...83R)
ShAl = Sharov & Alksnis (1991Ap&SS.180..273S 1991Ap&SS.180..273S, 1992Ap&SS.190..119S 1992Ap&SS.190..119S,
1997PAZh...23..614S 1997PAZh...23..614S)
ShAl,N18 = ShAl 18 in Simbad
SI2001 = Shafter & Irby (2001ApJ...563..749S 2001ApJ...563..749S).
CFN87 = Ciardullo et al. (1987ApJ...318..520C 1987ApJ...318..520C)
Note (2): t=JD(here)-JD(previous), i.e. negative values mean an earlier
detection on our plates than in previous works.
Note (3): For the first detection, see lcurves.dat
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq Sequential number
4- 80 A77 --- Note Test of the note
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Byte-by-byte Description of file: lcurves.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Plate Tautenburg plate number
6- 15 A10 "YYYY-MM-DD" Date Observation date
17- 26 F10.2 d JD Julian date
28- 31 F4.1 mag maglim Limiting magnitude of plate
33- 36 A4 --- Band Colour band
38- 41 A4 --- --- [M31N]
42- 49 A8 --- M31N Object name (YYYY-MMA)
(M31N YYYY-MMa in Simbad)
51- 54 F4.1 mag mag Observed magnitude in Band
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 15-Feb-2008