NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-23 T12:20:57 PDT
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Notes for object NGC 3402

2 note(s) found in NED.


1. 2009ApJ...693.1142S
Re:NGC 3402
NGC 3402 has been studied by V05 and V06. Although our temperature profile is
consistent with V05, the slope of the decline is smaller. The IRAS 100 {mu}m map
shows the presence of Galactic cirrus around the group. We indeed derived a
higher absorption column, 1.1 +/- 0.1 * 10^21^ cm^-2^, than the Galactic value
(4.0 * 10^20^ cm^-2^ from LAB). This value is smaller than that derived in V05,
1.55 +/- 0.1 * 10^21^ cm^-2^. However, the absorption difference has little
effect on the derived gas temperature. As the gas temperature is mainly
determined by blended line centroid, gas temperature remains almost the same,
with the higher N_H_ in V05. Because of higher temperatures derived at large
radii, our derived M_2500_ is larger than that from V06 and f_gas,2500_ is
smaller than in V06.

2. 1968MCG4..C...0000V
Re:MCG -02-28-012
Companions:
[17 mag] 0.9 arcmin to the west
[16 mag] very sharp N 2.0 arcmin to the east.


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