AKARI Far-Infrared Source Counts in the Lockman Hole

Details AKARI Far-Infrared Source Counts in the Lockman Hole AKARI Far-Infrared Source Counts in the Lockman Hole

2007-06-30

arxiv.org/abs/0707.0039v1

Astronomy and Astrophysics

Astrophysics

25 pages, 8 figures, Publications of the Astronomical Society of Japan, in press

Scientific paper

We report initial results of far-infrared observations of the Lockman hole with Far-Infrared Surveyor (FIS) onboard the AKARI infrared satellite. On the basis of slow scan observations of a 0.6 deg x 1.2 deg contiguous area, we obtained source number counts at 65, 90 and 140 um down to 77, 26 and 194 mJy (3 sigma), respectively. The counts at 65 and 140 um show good agreement with the Spitzer results. However, our 90 um counts are clearly lower than the predicted counts by recent evolutionary models that fit the Spitzer counts in all the MIPS bands. Our 90 um counts above 26 mJy account for about 7% of the cosmic background. These results provide strong constraints on the evolutionary scenario and suggest that the current models may require modifications.

Affiliated with

Also associated with

No associations

Rating

AKARI Far-Infrared Source Counts in the Lockman Hole does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with AKARI Far-Infrared Source Counts in the Lockman Hole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and AKARI Far-Infrared Source Counts in the Lockman Hole will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-143862