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TYC 4136-206-1


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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
We present spectra taken with the Infrared Spectrograph on the SpitzerSpace Telescope covering the 5-38 μm region of three ultraluminousinfrared galaxies (ULIRGs): Mrk 1014 (z=0.163), Mrk 463 (z=0.051), andUGC 5101 (z=0.039). The continua of UGC 5101 and Mrk 463 show strongsilicate absorption suggesting significant optical depths to the nucleiat 10 μm. UGC 5101 also shows the clear presence of water ice inabsorption. Polycyclic aromatic hydrocarbon (PAH) emission features areseen in both Mrk 1014 and UGC 5101, including the 16.4 μm line in UGC5101. The fine-structure lines are consistent with dominant activegalactic nucleus (AGN) power sources in both Mrk 1014 and Mrk 463. InUGC 5101 we detect the [Ne V] 14.3 μm emission line, providing thefirst direct evidence for a buried AGN in the mid-infrared. Thedetection of the 9.66 μm and 17.03 μm H2 emission linesin both UGC 5101 and Mrk 463 suggest that the warm molecular gasaccounts for 22% and 48% of the total molecular gas masses in thesegalaxies.Based on observations obtained with the Spitzer Space Telescope, whichis operated by the Jet Propulsion Laboratory, California Institute ofTechnology, under NASA contract 1407.

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Osservazione e dati astrometrici

Costellazione:Orsa Maggiore
Ascensione retta:09h34m22.76s
Declinazione:+61°31'35.7"
Magnitudine apparente:9.301
Moto proprio RA:-4.1
Moto proprio Dec:-17.2
B-T magnitude:10.687
V-T magnitude:9.416

Cataloghi e designazioni:
Nomi esatti   (Edit)
TYCHO-2 2000TYC 4136-206-1
USNO-A2.0USNO-A2 1500-05200574
HIPHIP 46968

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