SIMBAD references

2010AJ....139.1668R - Astron. J., 139, 1668-1680 (2010/April-0)

The multiple pre-main-sequence system HBC 515 in L1622.


Abstract (from CDS):

The bright pre-main-sequence star HBC 515 (HD 288313) located in the L1622 cometary cloud in Orion has been studied extensively with optical/infrared imaging and ultraviolet/optical/infrared spectroscopy. The spectra indicate that HBC 515 is a weakline T Tauri star (TTS) of spectral type K2V. Adaptive optics imaging in the K band reveals that HBC 515 is a binary with two equally bright components separated by 0".5. A very faint third component is found 5'' to the northwest. Spitzer IRAC and MIPS observations show that at mid-infrared wavelengths this third source dominates the system, suggesting that it is a protostar still embedded in the nascent cloud of HBC 515. The close association of a weakline TTS with a newborn protostar in a multiple system is noteworthy. Two nearby TTSs are likely associated with the HBC 515 multiple system, and the dynamical evolution of the complex that would lead to such a configuration is considered.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - binaries: close - stars: formation - stars: individual: HBC 515 - stars: pre-main sequence

Nomenclature: [RHA2010] HBC 515A (Nos A-D), [RHA2010] HBC 515Aa (Nos Aa-Ab).

Simbad objects: 35

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