J/A+A/624/A133 LMC S154 (LHA 120-S 154) light curves (Ilkiewicz+, 2019)
LMC S154: the first Magellanic symbiotic recurrent nova.
Ilkiewicz K., Mikolajewska J., Miszalski B., Gromadzki M., Monard B.,
Amigo P.
<Astron. Astrophys. 624, A133 (2019)>
=2019A&A...624A.133I 2019A&A...624A.133I (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, cataclysmic ; Photometry, UBVRI ; Photometry, infrared
Keywords: binaries: symbiotic - stars: individual: LHA 120-S 154 -
novae, cataclysmic variables
Abstract:
Classical nova outburst has been suggested for a number of
extragalactic symbiotic stars, but in none of the systems has it been
proven. In this work we study the nature of one of these systems, LMC
S154. We gathered archival photometric observations in order to
determine the timescales and nature of variability in this system.
Additionally we carried out photometric and spectroscopic monitoring
of the system and fitted synthetic spectra to the observations. Carbon
abundance in the photosphere of the red giant is significantly higher
than that derived for the nebula, which confirms pollution of the
circumbinary material by the ejecta from nova outburst. The
photometric and spectroscopic data show that the system reached
quiescence in 2009, which means that for the first time all of the
phases of a nova outburst were observed in an extragalactic symbiotic
star. The data indicate that most probably there were three outbursts
observed in LMC S154, which would make this system a member of a rare
class of symbiotic recurrent novae. The recurrent nature of the system
is supported by the discovery of coronal lines in the spectra, which
are observed only in symbiotic stars with massive white dwarfs and
with short-recurrence-time outbursts. Gathered evidence is sufficient
to classify LMC S154 as the first bona fide extragalactic symbiotic
nova, which is likely a recurrent nova. It is also the first nova with
a carbon-rich donor.
Description:
Compilation of all photometric observations of a symbiotic reccurent
nova LMC S154.
Objects:
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RA (2000) DE Designation(s)
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04 51 50.46 -75 03 35.3 nova LMC S154 = LHA 120-S 154
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 90 349 Photometric observations of LMC S154
tablea2.dat 32 35 Swift UV observations of LMC S154
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Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 "date" Date Date of observation
12- 16 I5 d JD ? Julian day of observation (JD-2400000)
18- 23 F6.3 mag mpg/Bmag ? Blue magnitude
25- 29 F5.3 mag e_mpg/Bmag ? Uncertainty of blue magnitude
31- 36 F6.3 mag Vmag ? Visual magnitude
38- 42 F5.3 mag e_Vmag ? Uncertainty of visual magnitude
44- 49 F6.3 mag Rmag ? Red magnitude
51- 55 F5.3 mag e_Rmag ? Uncertainty of red magnitude
57- 61 F5.2 mag I/Icmag ? Infrared I/Ic magnitude
63- 66 F4.2 mag e_I/Icmag ? Uncertainty of infrared I/Ic magnitude
68- 72 F5.2 mag Jmag ? Infrared J magnitude
74- 77 F4.2 mag e_Jmag ? Uncertainty of infrared J magnitude
79- 82 F4.2 mag Kmag ? Infrared K magnitude
84- 87 F4.2 mag e_Kmag ? Uncertainty of infrared K magnitude
89- 90 I2 --- Ref References (1)
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Note (1): References as follows:
1 = SuperCOSMOS Sky Surveys (Hambly et al., 2001MNRAS.326.1279H 2001MNRAS.326.1279H)
2 = The HST Guide Star Catalog, Version 1.2
(Morrison et al., 2001AJ....121.1752M 2001AJ....121.1752M, Cat. I/254)
3 = The USNO-A2.0 Catalogue (Monet et al., 1992, Cat. I/252)
4 = The USNO-B1.0 Catalog (Monet et al., 2003AJ....125..984M 2003AJ....125..984M, Cat. I/284)
5 = Remillard et al. (1992ApJ...396..668R 1992ApJ...396..668R)
6 = Muerset et al. (1996A&A...307..516M 1996A&A...307..516M)
7 = DENIS Catalogue toward Magellanic Clouds
(Cioni et al. 2000A&AS..144..235C 2000A&AS..144..235C, Cat. II/228)
8 = 2MASS All-Sky Catalog of Point Sources
(Skrutskie et al., 2006AJ....131.1163S 2006AJ....131.1163S, Cat. VII/233)
9 = INTEGRAL OMC (Gimenez et al., 2001, in ESA Special Publication, Vol. 459,
Exploring the Gamma-Ray Universe, ed. A. Gimenez, V. Reglero &
C. Winkler, 375-381)
10 = This work (Kleinkaroo Observatory)
11 = This work (Du Pont)
12 = Observations of Bart Staels from the American Association of Variable
Star Observers (AAVSO). AAVSO UID=000-BCZ-119
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 "date" Date Date of observation
12- 16 I5 d JD Julian day of observation (JD-2400000)
18- 21 I4 s ExpTime Exposure time
23- 27 F5.2 mag UVM2 UVM2 magnitude
29- 32 F4.2 mag e_UVM2 Uncertainty of UVM2 magnitude
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Acknowledgements:
Krystian Ilkiewicz, krystian.ilkiewicz(at)gmail.com
(End) Patricia Vannier [CDS] 20-Mar-2019