Herschel/PACS Imaging of Protostars in the HH 1-2 Outflow Complex

Details Herschel/PACS Imaging of Protostars in the HH 1-2 Outflow Complex Herschel/PACS Imaging of Protostars in the HH 1-2 Outflow Complex

2010-05-12

arxiv.org/abs/1005.2183v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

6 pages, 4 figures, accepted for publication in the A&A Herschel special issue

Scientific paper

We present 70 and 160 micron Herschel science demonstration images of a field in the Orion A molecular cloud that contains the prototypical Herbig-Haro objects HH 1 and 2, obtained with the Photodetector Array Camera and Spectrometer (PACS). These observations demonstrate Herschel's unprecedented ability to study the rich population of protostars in the Orion molecular clouds at the wavelengths where they emit most of their luminosity. The four protostars previously identified by Spitzer 3.6-40 micron imaging and spectroscopy are detected in the 70 micron band, and three are clearly detected at 160 microns. We measure photometry of the protostars in the PACS bands and assemble their spectral energy distributions (SEDs) from 1 to 870 microns with these data, Spitzer spectra and photometry, 2MASS data, and APEX sub-mm data. The SEDs are fit to models generated with radiative transfer codes. From these fits we can constrain the fundamental properties of the protostars. We find luminosities in the range 12-84 L_sun and envelope densities spanning over two orders of magnitude. This implies that the four protostars have a wide range of envelope infall rates and evolutionary states: two have dense, infalling envelopes, while the other two have only residual envelopes. We also show the highly irregular and filamentary structure of the cold dust and gas surrounding the protostars as traced at 160 microns.

Affiliated with

Also associated with

No associations

Rating

Herschel/PACS Imaging of Protostars in the HH 1-2 Outflow Complex 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 Herschel/PACS Imaging of Protostars in the HH 1-2 Outflow Complex, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Herschel/PACS Imaging of Protostars in the HH 1-2 Outflow Complex will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-639256