A Search for a Near-Infrared Halo around NGC 4565

Details A Search for a Near-Infrared Halo around NGC 4565 A Search for a Near-Infrared Halo around NGC 4565

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998apj...506l..15u&link_type=abstract

The Astrophysical Journal, Volume 506, Issue 1, pp. L15-L18.

Astronomy and Astrophysics

Astronomy

5

Cosmology: Dark Matter, Galaxies: Halos, Galaxies: Individual: Ngc Number: Ngc 4565, Stars: Low-Mass, Brown Dwarfs

Scientific paper

We present a near-infrared (3.5-5 μm) search for the integrated emission from low-mass stars and/or brown dwarfs in the halo of the nearby edge-on spiral galaxy NGC 4565. The observation was made with a liquid-helium-cooled rocket-borne telescope using a 256x256 InSb array with a pixel scale of 17". Images of NGC 4565 were successfully obtained with sensitivity near the natural background limit. Our search reveals no evidence of a faint halo around the galaxy, in contrast with the previous reports of a halo around NGC 5907. The lower limit of the mass-to-light ratio for the halo of NGC 4565 is 260 (2 sigma) in solar units at 3.5-5 mum. This implies that hydrogen-burning stars do not contribute significantly to the mass of the dark halo in NGC 4565.

Affiliated with

Also associated with

No associations

Rating

A Search for a Near-Infrared Halo around NGC 4565 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 A Search for a Near-Infrared Halo around NGC 4565, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Search for a Near-Infrared Halo around NGC 4565 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1720416