2013MNRAS.431L..33N


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.21CEST16:03:47

2013MNRAS.431L..33N - Mon. Not. R. Astron. Soc., 431, L33-L37 (2013/May-1)

The dusty aftermath of the V1309 Sco binary merger.

NICHOLLS C.P., MELIS C., SOSZYNSKI I., UDALSKI A., SZYMANSKI M.K., KUBIAK M., PIETRZYNSKI G., POLESKI R., ULACZYK K., WYRZYKOWSKI L., KOZLOWSKI S. and PIETRUKOWICZ P.

Abstract (from CDS):

We present mid-IR photometry and spectra of the merged binary V1309 Sco taken between 18 and 23 months after outburst. Strong mid-IR emission and a solid-state absorption feature indicate the presence of a significant amount of dust in the circumstellar environment. The absence of detectable mid-IR emission before the outburst suggests that this dust was produced in the eruptive merger event.

Model fits to the solid-state absorption feature constrain the constituent species and column density of the dust around V1309 Sco. We find that the absorption feature can be reproduced by large (3µm) amorphous pyroxene grains at a temperature of 800 K. This grain size, if confirmed with longer wavelength spectroscopy and modelling, would be suggestive of dust processing in the circumstellar environment. The data in hand do not allow us to discriminate between disc or shell configurations for the dusty material.


Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): binaries: close - circumstellar matter - stars: individual: V1309 Sco

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5758 1
2 V* V838 Mon CV* 07 04 04.8222936785 -03 50 50.637499515   15.5   15.18 14.51 M10+B3V 375 0
3 V* FK Com Ro* 13 30 46.7993742986 +24 13 57.786184235   9.04 8.245   7.204 G4III 348 1
4 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11758 0
5 V* V1309 Sco CV* 17 57 32.9383021931 -30 43 09.967391199   16.9   14.8   ~ 182 0
6 V* V4332 Sgr CV* 18 50 36.6959119600 -21 23 28.927014456         14.37 K8/M0e 145 0

    Equat.    Gal    SGal    Ecl

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2020.10.21-16:03:47

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