| Name | OT2_sskinner_1 |
| Title | Probing Star Formation in the Extreme Environment of Onsala 2 |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342255815&instrument_name=PACS&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-c5o3ehz |
| Author | skinner, s. |
| Description | One of the closest massive star-forming regions known, and surprisingly one of the least studied, is the Onsala 2 (ON2) complex in Cygnus atd = 1.2 kpc. The ON2 region shows numerous signs of active high-mass star-formation including OH masers, compact and ultracompact HII regions,and luminous molecular outflows. A unique feature of ON2 is that itharbors the rare and remarkable Wolf-Rayet star WR 142, a strongUV source whose hypersonic wind is driving shock waves throughoutthe region. We propose to conduct the first comprehensive IR study of ON2 using PACS and SPIRE, supplemented by existingSpitzer IRAC/MIPS data and high resolution Chandra X-ray data.This study will build on (and complement) our X-ray study of ON2already in progress. Our primary goal is to develop a broad pictureof how star-formation is proceeding in ON2 and to identify environmentalfactors that may be affecting it (e.g. ionization and shocks associatedwith HII regions and WR 142). We will identify and classify all IR-excessYSOs, including the population of embedded sources and low-mass YSOs about which little is yet known. We will determine if filamentary structurescontaining YSOs are present and will use information on the spatialdistribution of YSOs relative to strong ionizing sources to searchfor evidence of triggered star formation. Aperture photometry willprovide information on the physical properties of individual YSOsand a dust temperature map of ON2. Steep temperature gradients areexpected near strong ionizing HII regions, one of which is knownto be a source of hard diffuse X-rays. We also propose to obtaintargeted SPIRE FTS spectroscopy of the massive YSO IRAS 20198+3716to determine properties of the gas in its vicinity. |
| Publication |
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| Instrument | SPIRE_SpireSpectrometer_ |
| Temporal Coverage | 2012-11-24T20:17:24Z/2012-11-24T20:30:42Z |
| Version | SPG v14.1.0 |
| 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 | 2013-05-24T20:17:24Z |
| Last Update | 2026-03-02 |
| 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, skinner et al., 2013, 'Probing Star Formation in the Extreme Environment of Onsala 2', SPG v14.1.0, European Space Agency, https://doi.org/10.5270/esa-c5o3ehz |