A Near-IR Integral Field Spectroscopic Insight to Starburst Monsters at z˜2: The Case of Submillimeter Galaxies

Details A Near-IR Integral Field Spectroscopic Insight to Starburst Monsters at z˜2: The Case of Submillimeter Galaxies A Near-IR Integral Field Spectroscopic Insight to Starburst Monsters at z˜2: The Case of Submillimeter Galaxies

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..446..263m&link_type=abstract

Galaxy evolution: Infrared to millimeter wavelength perspective. Proceedings of a conference held at Guilin, China 25-29 October

Astronomy and Astrophysics

Astronomy

Scientific paper

We target Hα emission of three submillimeter-selected galaxies (SMGs) at redshifts z˜1.4-2.4 with the OH-Suppressing Infrared Imaging Spectrograph (OSIRIS) on Keck. The integral field spectroscopic view of these objects allows us to disentangle the broad Hα emission arising from compact regions associated with an AGN from the spatially-extended narrow-line Hα emission corresponding to star formation. The corresponding star-formation rate surface densities in these SMGs is similar to that generally found in local circumnuclear starbursts and low-redshift luminous infrared galaxies. However, in contrast to these local environments where star formation is usually confined to the central 1-2kpc, the star formation in these SMGs is spread onto significantly larger spatial scales (up to ˜> 15 kpc). We also explore the dynamics of ionized gas as given by Hα emission to improve our understanding of the internal dynamics of these SMGs. We find no evidence to suggest a rotating disk in these galaxies, but rather large velocity offsets (˜few ×100 km s-1) between distinct galactic-scale sub-components pointing towards a merging nature.

Affiliated with

Also associated with

No associations

Rating

A Near-IR Integral Field Spectroscopic Insight to Starburst Monsters at z˜2: The Case of Submillimeter Galaxies 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 Near-IR Integral Field Spectroscopic Insight to Starburst Monsters at z˜2: The Case of Submillimeter Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Near-IR Integral Field Spectroscopic Insight to Starburst Monsters at z˜2: The Case of Submillimeter Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1651090