J/AJ/147/9 VRIJHK light curves of V582 Mon (Windemuth+, 2014)
Multi-wavelength photometry of the T Tauri binary V582 Mon (KH 15D): a new epoch
of occultations.
Windemuth D., Herbst W.
<Astron. J., 147, 9 (2014)>
=2014AJ....147....9W 2014AJ....147....9W
ADC_Keywords: Stars, pre-main sequence ; Stars, double and multiple ;
Photometry, UBVRIJKLMNH
Keywords: binaries: close - protoplanetary disks - stars: pre-main sequence
Abstract:
We present multi-wavelength (VRIJHK) observations of KH 15D obtained
in 2012/2013, as well as a master table of standard photometry
spanning the years 1967 to 2013. The system is a close, eccentric T
Tauri binary embedded in an inclined precessing circumbinary (CB)
ring. The most recent data show the continued rise of star B with
respect to the trailing edge of the occulting horizon as the system's
maximum brightness steadily increases. The wealth of data in time and
wavelength domains allows us to track the long-term CCD color
evolution of KH 15D. We find that the V-I behavior is consistent with
direct and scattered light from the composite color of two stars with
slightly different temperatures. There is no evidence for any
reddening or bluing associated with extinction or scattering by
interstellar-medium-size dust grains. Furthermore, we probe the
system's faint phase behavior at near-infrared wavelengths in order to
investigate extinction properties of the ring and signatures of a
possible shepherding planet sometimes invoked to confine the CB ring
at ∼5AU. The wavelength independence of eclipse depth at second
contact is consistent with the ring material being fully opaque to
2.2µm. The color-magnitude diagrams demonstrate excess flux in J
and H at low light levels, which may be due to the presence of a hot,
young Jupiter-mass planet.
Description:
Simultaneous Optical/NearIR observations were acquired in queue mode
with A Novel Duel Imaging CAMera (ANDICAM) 1.3m instrument operated by
the Small & Moderate Aperture Research Telescope System (SMARTS)
consortium at the Cerro Tololo Inter-American Observatory (CTIO) in
Chile. We obtained ground-based VRIJHK photometry with a cadence of
1-3 days from 2012 October 1 to 2013 May 9 (JD 2456202.8-JD
2456422.5).
In addition to the 2010-2013 SMARTS observations, we have assembled
from the literature for the convenience of future investigators a
master table of available standard photometry on KH 15D (Table3).
Objects:
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RA (ICRS) DE Designation(s) (Period)
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06 41 10.31 +09 28 33.2 V* V582 Mon = NAME KH 15D (P=48.37)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 117 8655 Standard BVRIJHK photometry of KH 15D
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See also:
J/AJ/140/2025 : KH 15D (V582 Mon) VI light curves (Herbst+, 2010)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 8 F8.2 d JD [33658/56423] Mean Julian Date of observation
(JD-2400000)
10- 15 F6.3 mag Bmag [17.287/17.944]?=99.999 Johnson B band magnitude
17- 21 F5.3 mag e_Bmag ?=9.999 The 1σ error in Bmag
23- 28 F6.3 mag Vmag [15.873/21.739]?=99.999 Johnson V band magnitude
30- 34 F5.3 mag e_Vmag ?=9.999 The 1σ error in Vmag
36- 41 F6.3 mag Rmag [15.178/19.394]?=99.999 Cousins R band magnitude
43- 47 F5.3 mag e_Rmag ?=9.999 The 1σ error in Rmag
49- 54 F6.3 mag Imag [13.2/19.79]?=99.999 Cousins I band magnitude
56- 60 F5.3 mag e_Imag ?=9.999 The 1σ error in Imag
62- 67 F6.3 mag Jmag [13.42/18.33]?=99.999 The J band magnitude
69- 73 F5.3 mag e_Jmag ?=9.999 The 1σ error in Jmag
75- 80 F6.3 mag Hmag [12.74/19.993]?=99.999 The H band magnitude
82- 86 F5.3 mag e_Hmag ?=9.999 The 1σ error in Hmag
88- 93 F6.3 mag Kmag [12.47/17.148]?=99.999 The K band magnitude
95- 99 F5.3 mag e_Kmag ?=9.999 The 1σ error in Kmag
101-109 A9 --- Obs Observatory code (2)
111-117 A7 --- Ref Reference code (3)
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Note (2): A "," indicates different sources for optical and NearIR data.
Observatory (from which the photometry was obtained) codes are defined as
follows:
ASI = Asiago Observatory archives;
ESO = European Southern Observatory, La Silla, Chile;
CTIO = Cerro Tololo Inter-American Observatory SMARTS ANDICAM;
IRSF = South African astronomical observatory's InfraRed Survey Facility;
KAIT = Katzman Automated Telescope, Mt. Hamilton, CA;
KISO = Kiso 105/150cm Schmidt;
KONK = Konkoly Observatory, Hungary;
KPNO = Kitt Peak National Observatory telescopes;
MTW = Mount Wilson 60 in;
POSS = Palomar 122/183cm Oschin Schmidt;
ROZ = Rozhen NAO 2.0m RCC;
TAU = Tautenburg 134/200cm Schmidt;
TEN = Tenagra Observatory, Nogales, AZ;
TENE = Teide Observatory, Tenerife, Spain;
USNO = US Naval Observatory's 1.3m and 1m telescopes;
UZBK = Mount Maidanak Observatory, Uzbekistan;
VVO = Van Vleck Observatory, Middletown, CT;
WISE = Wise Observatory, Israel.
Note (3): A "," indicates different sources for optical and Near-infrared data.
Paper (from which data was presented) codes are defined as follows:
J04 = Johnson & Winn (2004AJ....127.2344J 2004AJ....127.2344J);
J05 = Johnson et al. (2005AJ....129.1978J 2005AJ....129.1978J);
H05 = Hamilton et al. (2005AJ....130.1896H 2005AJ....130.1896H);
K05 = Kusakabe et al. (2005ApJ...632L.139K 2005ApJ...632L.139K);
H10 = Herbst et al. (2010, cat. J/AJ/140/2025);
W13 = Windemuth & Herbst (2013; this paper).
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Sylvain Guehenneux [CDS] 26-Aug-2014