J/A+A/559/A121 U Sco outburst and pre-outburst optical spectrum (Anupama, 2013)
The 2010 outburst and pre-outburst optical spectrum of the recurrent nova
U Scorpii.
Anupama G.C., Kamath U.S., Ramaprakash A.N., Kantharia N. G., Hegde M.,
Mohan V., Kulkarni M., Bode M. F., Eyres S.P.S., Evans A., O'Brien T.J.
<Astron. Astrophys. 559, A121 (2013)>
=2013A&A...559A.121A 2013A&A...559A.121A
ADC_Keywords: Novae ; Spectroscopy
Keywords: stars: individual: U Scorpii - novae, cataclysmic variables -
techniques: spectroscopic - techniques: polarimetric -
radio continuum: stars
Abstract:
Optical spectroscopic observations of the recurrent nova U Scorpii
during its outburst in 2010 were obtained during 0.83-162.5 days after
outburst maximum. Three spectra were obtained during pre-outburst
quiescence. This paper discusses these observations along with optical
polarimetric and radio continuum (610MHz, 1280MHz ; GMRT) data
obtained during the 2010 outburst.
Description:
This archive contains the extracted optical spectra of U Scorpii
obtained using the Himalaya Faint Object Spectrograph (HFOSC) on the
2m Himalayan Chandra Telescope (HCT). The spectra are in ascii format
and named as "date.dat" (eg : "29jan10.dat" is the spectrum obtained
on 2010, Jan 29.021 -- corresponding to the date in Table 1 of the
paper).
The first line of each file contains the object name, date of
observation (eg., 28 Jan 2010 for the night of 28/29 Jan 2010), JD,
time since outburst maximum, orbital phase, etc., of each observation.
The data are in two columns from the second line onwards. The first
column gives the wavelength in Angtroms, the second column gives the
flux in erg/s/cm2/Å.
Objects:
------------------------------------------------
RA (2000) DE Designation(s)
------------------------------------------------
16 22 30.80 -17 52 43.2 U Sco = NOVA Sco 1863
------------------------------------------------
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
list.dat 70 28 List of optical spectra
sp/* . 28 Individual spectra
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See also:
J/AJ/140/925 : Pre-eruption light curves for Nova U Sco (Schaefer+, 2010)
J/ApJ/742/113 : Photometry during the 2010 eruption of U Sco (Schaefer+, 2011)
Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 A12 --- FileName Name of the file with optical spectrum
in subdirectory sp
15- 25 A11 "DD/MM/YYYY" Date Date of observation (28/Jan/2010 for the
night of 28/29 Jan 2010)
27- 38 F12.4 d JD ? Julian date of observation
39 A1 --- n_JD [H] H when HJD date instead of JD
41- 47 F7.3 d dt ? Time from outburst maximum JD2455224.69
(Schaefer et al. 2010, Cat. J/AJ/140/925)
49- 53 F5.3 --- Phase [0/1] Orbital phase
55- 70 A16 --- Com Comments
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Byte-by-byte Description of file (# headlines): sp/*
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 F16.11 0.1nm lambda [3500/9300] Wavelength
20- 31 E12.7 cW/m2/nm Flux Flux in erg/s/cm2/Å
--------------------------------------------------------------------------------
Acknowledgements:
U.S. Kamath, uskamath (at)iiap.res.in
(End) G.C. Anupama [IIA, India], Patricia Vannier [CDS] 28-Nov-2013