| Name | GT1_okrause_4 |
| Title | Peering into the Dust: The Far-IR Emission in M31 at GMC-Resolution |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342211604&instrument_name=SPIRE\/PACS parallel&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-n59trbs |
| Author | krause, o. |
| Description | We propose to image M31 (3x1deg) with PACS and SPIRE in slow parallel modeto understand the dust heating processes and efficiencies in normal spiralgalaxies. Our observations will provide a unique deep and panchromatic70,100,160, 250, 350 and 500 micron view of the inner stellar disk of M31at the highest possible spatial resolution with Herschel. Combined withSpitzer 8 and 24 micron data, this imaging will provide a detailed map ofthe thermal-IR SED at a resolution unparalleled for any other large galaxy. The 6-18 arcsec spatial resolution of Herschel at 70-250 micron corresponds to 20-60 pc at the distance of M31 and matches the scales of molecular clouds complexes (GMCs; ~ 40 pc) as well as of HII regions and clusters thereof (about 10-50 pc). Existing GALEX and optical data, as well as upcoming 900 orbit HST imaging will provide us with an unprecedented, resolved picture of all stellar populations younger than ~200 Myrs, which should encompass much of the r^ant dust heating sources at scales of a few to a few 10 parsecs.With such information on both the thermal state of the dust and on theheating sources in hand, our SED modelling can then be used to understandover what length scales and with what efficiency stars heat the dust. Theresults will also serve as a local high resolution calibration of Herscheldata on more distant galaxies such as from the KINGFISH OT key project.This proposal is part of a coordinated effort to image M31 and itssurroundings: Here we aim on sensitive 70-250 micron coverage at thehighest spatial resolution for the bright inner stellar disk while thediffuse outer cold dust envelope including the companion NGC205 are thetarget of a second proposal by Fritz et al. For the analysis of extendedvery cold dust emission, the SPIRE data will be provided collaborativelyto the other team. |
| Publication |
|
| Instrument | SPIRE\/PACS parallel_SpirePacsParallel_ |
| Temporal Coverage | 2010-12-25T17:35:48Z/2010-12-27T06:23:45Z |
| Version | SPG v14.2.0 |
| Mission Description | Herschel was launched on 14 May 2009! It is the fourth cornerstone mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 µm range, bridging the gap between earlier infrared space missions and groundbased facilities. |
| Creator Contact | https://support.cosmos.esa.int/h®erschel/ |
| Date Published | 2011-12-15T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | Herschel Space Observatory data, ESA Herschel mission dataset, far-infrared astronomy observations, submillimeter astronomy data, infrared space telescope observations, PACS photometer data, PACS spectrometer data, SPIRE photometer data, SPIRE Fourier transform spectrometer data, HIFI heterodyne spectroscopy data, far-infrared spectroscopy dataset, submillimeter spectral line observations, cold universe observations dataset, star formation infrared data, molecular cloud far-infrared observations, interstellar medium spectroscopy data, protoplanetary disk infrared observations, galaxy evolution far-infrared data, dust emission submillimeter observations, cosmic infrared background measurements, extragalactic infrared survey data, calibrated level 2 data products, FITS files astronomy, spectral cubes far-infrared, flux-calibrated maps, continuum photometry data, spectral energy distribution measurements, ESA Herschel Science Archive data |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, krause et al., 2011, 'Peering into the Dust: The Far-IR Emission in M31 at GMC-Resolution', SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-n59trbs |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |