2004ApJS..154..178A

Query : 2004ApJS..154..178A

2004ApJS..154..178A - Astrophys. J., Suppl. Ser., 154, 178-183 (2004/September-0)

Observations of ultraluminous infrared galaxies with the infrared spectrograph (IRS) on the Spitzer Space Telescope: early results on Markarian 1014, Markarian 463, and UGC 5101.

ARMUS L., CHARMANDARIS V., SPOON H.W.W., HOUCK J.R., SOIFER B.T., BRANDL B.R., APPLETON P.N., TEPLITZ H.I., HIGDON S.J.U., WEEDMAN D.W., DEVOST D., MORRIS P.W., UCHIDA K.I., VAN CLEVE J., BARRY D.J., SLOAN G.C., GRILLMAIR C.J., BURGDORF M.J., FAJARDO-ACOSTA S.B., INGALLS J.G., HIGDON J., HAO L., BERNARD-SALAS J., HERTER T., TROELTZSCH J., UNRUH B. and WINGHART M.

Abstract (from CDS):

We present spectra taken with the Infrared Spectrograph on the Spitzer Space Telescope covering the 5-38 µm region of three ultraluminous infrared galaxies (ULIRGs): Mrk 1014 (z=0.163), Mrk 463 (z=0.051), and UGC 5101 (z=0.039). The continua of UGC 5101 and Mrk 463 show strong silicate absorption suggesting significant optical depths to the nuclei at 10 µm. UGC 5101 also shows the clear presence of water ice in absorption. Polycyclic aromatic hydrocarbon (PAH) emission features are seen in both Mrk 1014 and UGC 5101, including the 16.4 µm line in UGC 5101. The fine-structure lines are consistent with dominant active galactic nucleus (AGN) power sources in both Mrk 1014 and Mrk 463. In UGC 5101 we detect the [Ne V] 14.3 µm emission line, providing the first direct evidence for a buried AGN in the mid-infrared. The detection of the 9.66 µm and 17.03 µm H2emission lines in both UGC 5101 and Mrk 463 suggest that the warm molecular gas accounts for 22% and 48% of the total molecular gas masses in these galaxies.

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Journal keyword(s): Galaxies: Active - Galaxies: Individual: Name: Markarian 1014 - Galaxies: Individual: Name: Markarian 463 - Galaxies: Individual: Alphanumeric: UGC 5101 - Galaxies: Seyfert - Galaxies: Starburst - Infrared: Galaxies - Galaxies: Quasars: General

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 Mrk 1014 Sy1 01 59 50.2534701768 +00 23 40.864244784   16.08 15.87     ~ 606 0
2 HD 12382 PM* 02 01 27.8922278736 +00 28 32.331513756   8.99 8.48     G0V 19 0
3 BD+62 1078 * 09 34 22.7680474848 +61 31 35.737797936   10.38 9.29     K0 10 0
4 Z 289-11 Sy2 09 35 51.6045544584 +61 21 11.589382368   15.20 15.50     ~ 617 2
5 Mrk 463E Sy1 13 56 02.88573 +18 22 18.8440   15.01 14.22     ~ 158 1
6 Z 103-14 Sy2 13 56 02.89833 +18 22 18.2982   14.8 14.22     ~ 413 2
7 HD 121829 PM* 13 57 35.2129877328 +18 15 38.050443108   8.67 7.66     G6III-IV 20 0

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