J/A+A/582/L12 V960 Mon light curves (Hackstein+, 2015)
Light curves of the lates FUor: Indications of a close binary.
Hackstein M., Haas M., Kospal A., Hambsch F.-J., Chini R., Abraham P.,
Moor A., Pozo Nunez F., Ramolla M., Westhues C., Kaderhandt L., Fein C.,
Barr Dominguez A., Hodapp K.-W.
<Astron. Astrophys. 582, L12 (2015)>
=2015A&A...582L..12H 2015A&A...582L..12H (SIMBAD/NED BibCode)
ADC_Keywords: Stars, variable ; Photometry, UBVRI ; Photometry, infrared ;
Photometry, SDSS
Keywords: stars: variables: T Tauri, Herbig Ae/Be - binaries: close -
stars: individual: 2MASS J06593158-0405277
Abstract:
We monitored the recent FUor 2MASS J06593158-0405277 (V960 Mon)
since November 2009 at various observatories and multiple wavelengths.
After the outburst by nearly 2.9mag in r around September 2014 the
brightness gently fades until April 2015 by nearly 1mag in U and
0.5mag in z. Thereafter the brightness at λ>5000Å was
constant until June 2015 while the shortest wavelengths (U,B) indicate
a new rise, similar to that seen for the FUor V2493 Cyg (HBC722). Our
near-infrared (NIR) monitoring between December 2014 and April 2015
shows a smaller outburst amplitude (∼2mag) and a smaller (0.2-0.3mag)
post-outburst brightness decline. Optical and NIR color-magnitude
diagrams indicate that the brightness decline is caused by growing
extinction. The post-outburst light curves are modulated by an
oscillating color-neutral pattern with a period of about 17 days and
an amplitude declining from ∼0.08mag in October 2014 to ∼0.04mag in
May 2015. The properties of the oscillating pattern lead us to suggest
the presence of a close binary with eccentric orbit.
Description:
Photometric light curves for V960Mon (2MASS J06593158-0405277) from
different telescopes at multiple wavelengths between September 2009 to
June 2015. This comprises optical observations from
Universitaetssternwarte Bochum (USB) in Chile as part of the Bochum
Galatic Disk Survey (GDS, 2015AN....336..590H 2015AN....336..590H), Konkoly Observatory in
Hungary, and the Remote Observatory Atacama Desert (ROAD) in Chile, as
well as near-infrared data from USB.
Objects:
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RA (2000) DE Designation(s)
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06 59 31.58 -04 05 27. 7 V960Mon = 2MASS J06593158-0405277
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
lc_data.dat 40 1376 Light curves of V960 Mon
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See also:
J/A+AS/124/33 : BN Ori UBV photometry + equivalent width (Shevchenko+ 1997)
J/A+A/556/A60 : BVRI observations of the FUor star V582 Aur (Semkov+, 2013)
Byte-by-byte Description of file: lc_data.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Tel Telescope
13- 23 F11.5 d MJD Modified Julian Date
25 A1 --- Filt [UBVRIJHKriz] Filter (1)
27- 33 F7.4 mag mag Magnitude in filter
35- 40 F6.4 mag e_mag rms uncertainty on mag
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Note (1): Filters informations as follows:
UBVRI = Johnson-Cousins
riz = Sloan
JHK = 2MASS J,H,Ks
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Acknowledgements:
Moritz Hackstein, hackstein(at)astro.rub.de
(End) Moritz Hackstein [AIRUB], Patricia Vannier [CDS] 08-Oct-2015