| Issue |
A&A
Volume 445, Number 1, January I 2006
|
|
|---|---|---|
| Page(s) | 331 - 335 | |
| Section | Stellar structure and evolution | |
| DOI | https://doi.org/10.1051/0004-6361:20054122 | |
| Published online | 13 December 2005 | |
VLT/NACO adaptive optics imaging of the Herbig Ae star HD 100453
1
Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany e-mail: [chen;henning;boekel]@mpia.de
2
Eureka Scientific and Goddard Space Flight Center, Exploration of the Universe Division, Code 667, NASA's GSFC Greenbelt, MD 20771, USA e-mail: cgrady@echelle.gsfc.nasa.gov
Revised:
2
May
2005
Accepted:
4
October
2005
We report the detection of a companion candidate to the
Herbig Ae star HD 100453, using the NACO instrument at the VLT UT4. The separation between the companion candidate and HD 100453
is 1
06, and their brightness contrast is 5.1 mag at Ks and 4.2 mag at Brγ. We discuss the possible
nature of the newly detected star based on near-infrared
photometry. The photometric data are consistent with a 0.3 
companion to HD 100453, corresponding to a
spectral type of M3-M5. This detection could have
important implications for the structure of the disk around
HD 100453.
Key words: binaries: general - stars: individual: HD 100453 - stars: pre-main sequence - techniques: high angular resolution
© ESO, 2005
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