J/A+A/607/A127 2014-2017 photometry for ASASSN-13db (Sicilia-Aguilar+, 2017)
The 2014-2017 outburst of the young star ASASSN-13db.
Sicilia-Aguilar A., Oprandi A., Froebrich D., Fang M., Prieto J.L.,
Stanek K., Scholz A., Kochanek C.S., Henning T., Gredel R., Holoien T.S.W.,
Rabus M., Shappee B.J., Billington S.J., Campbell-White J., Zegmott T.J.
<Astron. Astrophys. 607, A127 (2017)>
=2017A&A...607A.127S 2017A&A...607A.127S (SIMBAD/NED BibCode)
ADC_Keywords: Stars, variable ; Stars, pre-main sequence ; Photometry
Keywords: stars: pre-main sequence - stars: T Tauri, Herbig Ae/Be -
stars: individual: ASASSN-13db - stars: low-mass -
protoplanetary disks - accretion - techniques: spectroscopic
Abstract:
Accretion outbursts are key elements in star formation. ASASSN-13db is
a M5-type star with a protoplanetary disk, the lowest-mass star known
to experience accretion outbursts. Since its discovery in 2013, it has
experienced two outbursts, the second of which started in November
2014 and lasted until February 2017.
We explore the photometric and spectroscopic behavior of ASASSN-13db
during the 2014-2017 outburst.
We use high- and low-resolution spectroscopy and time-resolved
photometry from the ASAS-SN survey, the LCOGT and the Beacon
Observatory to study the lightcurve of ASASSN-13db and the dynamical
and physical properties of the accretion flow. Results. The 2014-2017
outburst lasted for nearly 800 days. A 4.15d period in the light curve
likely corresponds to rotational modulation of a star with hot
spot(s). The spectra show multiple emission lines with variable
inverse P-Cygni profiles and a highly variable blue-shifted absorption
below the continuum. Line ratios from metallic emission lines
(FeI/FeII, TiI/TiII) suggest temperatures of ∼5800-6000K in the
accretion flow.
Description:
Table 1 contains the full photometry from the All Sky Automated Survey
for Supernovae (ASAS-SN) for the variable star ASASSN-13db. Detections
with their errors and 5-sigma upper limits are given. Upper limits are
marked by the "<" sign and have the error column set to 99.99.
Objects:
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RA (2000) DE Designation(s)
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05 10 11.08 -03 28 26.3 ASASSN-13db = ASASSN -13db
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 27 1017 ASAS-SN photometry for ASASSN-13db
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d HJD Heliocentric Julian Day
15 A1 --- l_Vmag Upper limit sign on Vmag
17- 21 F5.2 mag Vmag V magnitude
23- 27 F5.2 mag e_Vmag ?=99.99 Error in V magnitude, set to 99.99
for upper limits
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Acknowledgements:
Aurora Sicilia-Aguilar, a.siciliaaguilar(at)dundee.ac.uk
(End) Aurora Sicilia-Aguilar [Dundee], Patricia Vannier [CDS] 17-Aug-2017