Infrared study of a star forming region, L1251B. Jeong-Eun Lee Sejong University. IGRINS for protostars. High spatial and spectral resolution studies of inflow & outflow close to protostars are lacking. With IGRINS, we can study statistically sample of protostars and explore
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Infrared study of a star forming region, L1251B
13CO 1-0 map
Gas Distribution (OVRO)
Thick contours: N2H+
Thin contours: HCO+
Gray: 3 mm continuum
Gray: 1 mm continuum
Lee et al. 2007
Heated by IRS1
Heated by shock
Ne II 12.8
Fe II 17.9
NH = 2 x 1023 cm-2 (Av = 100 mag) → XDR ?
LX = 1032.4 erg s-1
Need high spectral resolution observations of Fe III
Fe II 26
→ a dissociative shock ??
→ various shock properties??
NeII 2P01/2-2P03/2 (12.8 μm) and SIII 3P2-3P1 (33.5 μm) peak at IRS2 with no elongated emission, so possibly related to infall or outflow very close to the protostar??
Need high spectral & spatial resolution observations
The Spitzer IRS mapping of L1251B revealed a few interesting results!!