2013ApJ...779L..19P

Query : 2013ApJ...779L..19P

2013ApJ...779L..19P - Astrophys. J., 779, L19 (2013/December-3)

Shock excited molecules in NGC 1266: ULIRG conditions at the center of a bulge-dominated galaxy.

PELLEGRINI E.W., SMITH J.D., WOLFIRE M.G., DRAINE B.T., CROCKER A.F., CROXALL K.V., VAN DER WERF P., DALE D.A., RIGOPOULOU D., WILSON C.D., SCHINNERER E., GROVES B.A., KRECKEL K., SANDSTROM K.M., ARMUS L., CALZETTI D., MURPHY E.J., WALTER F., KODA J., BAYET E., BEIRAO P., BOLATTO A.D., BRADFORD M., BRINKS E., HUNT L., KENNICUTT R., KNAPEN J.H., LEROY A.K., ROSOLOWSKY E., VIGROUX L. and HOPWOOD R.H.B.

Abstract (from CDS):

We investigate the far infrared (IR) spectrum of NGC 1266, a S0 galaxy that contains a massive reservoir of highly excited molecular gas. Using the Herschel Fourier Transform Spectrometer, we detect the 12CO ladder up to J = (13-12), [C I] and [N II] lines, and also strong water lines more characteristic of UltraLuminous IR Galaxies (ULIRGs). The 12CO line emission is modeled with a combination of a low-velocity C-shock and a photodissociation region. Shocks are required to produce the H2 O and most of the high-J CO emission. Despite having an IR luminosity 30 times less than a typical ULIRG, the spectral characteristics and physical conditions of the interstellar medium of NGC 1266 closely resemble those of ULIRGs, which often harbor strong shocks and large-scale outflows.

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Journal keyword(s): galaxies: individual: NGC 1266 - infrared: ISM - ISM: jets and outflows - ISM: lines and bands - ISM: molecules - photon-dominated region, PDR

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 1266 Sy1 03 16 00.7739640240 -02 25 37.827013584   14   12.46   ~ 332 2
2 IC 342 AGN 03 46 48.514 +68 05 45.98   10.5       ~ 1579 1
3 NAME Orion Bright Bar reg 05 35 22.30 -05 24 33.0           ~ 1004 0
4 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
5 Z 294-4 Sy1 12 56 14.2341182928 +56 52 25.238373852   14.68 13.84     ~ 2096 3
6 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
7 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2

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