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FEEDBACK: a SOFIA Legacy Program to Study Stellar Feedback in Regions of Massive Star Formation

Schneider, N. and Simon, R. and Guevara, C. and Buchbender, C. and Higgins, R. D. and Okada, Y. and Stutzki, Jürgen and Güsten, R. and Anderson, L. D. and Bally, J. and Beuther, H. and Bonne, L. and Bontemps, S. and Chambers, E. T. and Csengeri, T. and Graf, U. and Gusdorf, A. and Jacobs, K. and Justen, M. and Kabanovic, S. and Karim, R. and Luisi, M. and Menten, K. and Mertens, M. and Mookerjea, B. and Ossenkopf-Okada, V. and Pabst, C. and Pound, M. W. and Richter, Heiko and Reyes, N. and Ricken, Oliver and Röllig, M. and Russeil, D. and Sanches-Monge, A. and Sandell, Göran and Tiwari, M. and Wiesemeyer, H. and Wolfire, M. and Wyrowski, F. and Zavagno, A. and Tielens, A. G. G. M. (2020) FEEDBACK: a SOFIA Legacy Program to Study Stellar Feedback in Regions of Massive Star Formation. Publications of the Astronomical Society of the Pacific, 132 (104301). Institute of Physics (IOP) Publishing. ISSN 0004-6280

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Official URL: https://doi.org/10.1088/1538-3873/aba840

Abstract

FEEDBACK is a SOFIA (Stratospheric Observatory for Infrared Astronomy) legacy program dedicated to study the interaction of massive stars with their environment. It performs a survey of 11 galactic high mass star-forming regions in the 158 μm (1.9 THz) line of [C II] and the 63 μm (4.7 THz) line of [O I]. We employ the 14 pixel Low Frequency Array and 7 pixel High Frequency Array upGREAT heterodyne instrument to spectrally resolve (0.24 MHz) these far-infrared fine structure lines. With a total observing time of 96h, we will cover ∼6700 arcmin2 at 14 1) angular resolution for the [C II] line and 6 3 for the [O I] line. The observations started in spring 2019 (Cycle 7). Our aim is to understand the dynamics in regions dominated by different feedback processes from massive stars such as stellar winds, thermal expansion, and radiation pressure, and to quantify the mechanical energy injection and radiative heating efficiency. This is an important science topic because feedback of massive stars on their environment regulates the physical conditions and sets the emission characteristics in the interstellar medium (ISM), influences the star formation activity through molecular cloud dissolution and compression processes, and drives the evolution of the ISM in galaxies. The [C II] line provides the kinematics of the gas and is one of the dominant cooling lines of gas for low to moderate densities and UV fields. The [O I] line traces warm and high-density gas, excited in photodissociations regions with a strong UV field or by shocks. The source sample spans a broad range in stellar characteristics from single OB stars, to small groups of O stars, to rich young stellar clusters, to ministarburst complexes. It contains well-known targets such as Aquila, the Cygnus X region, M16, M17, NGC7538, NGC6334, Vela, and W43 as well as a selection of H II region bubbles, namely RCW49, RCW79, and RCW120. These [C II] maps, together with the less explored [O I] 63 μm line, provide an outstanding database for the community. They will be made publically available and will trigger further studies and follow-up observations.

Item URL in elib:https://elib.dlr.de/136153/
Document Type:Article
Title:FEEDBACK: a SOFIA Legacy Program to Study Stellar Feedback in Regions of Massive Star Formation
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schneider, N.I. Physikalisches Institut der Universität zu KölnUNSPECIFIED
Simon, R.Universität Köln, 1. Physikalisches InstitutUNSPECIFIED
Guevara, C.I. Physikalisches Institut der Universität zu KölnUNSPECIFIED
Buchbender, C.I. Physikalisches Institut der Universität zu KölnUNSPECIFIED
Higgins, R. D.I. Physikalisches Institut der Universität zu KölnUNSPECIFIED
Okada, Y.I. Physikalisches Institut der Universität zu KölnUNSPECIFIED
Stutzki, JürgenKOSMA, I. Physikalisches Institut Universität zu KölnUNSPECIFIED
Güsten, R.Max-Planck-Institut für Radioastronomie, Bonn, GermanyUNSPECIFIED
Anderson, L. D.Department of Physics and Astronomy, West Virginia UniversityUNSPECIFIED
Bally, J.Center for Astrophysics and Space Astronomy, University of ColoradoUNSPECIFIED
Beuther, H.Max Planck Institute for Astronomy, Königstuhl, HeidelbergUNSPECIFIED
Bonne, L.LAB, University of BordeauxUNSPECIFIED
Bontemps, S.Universite BordeauxUNSPECIFIED
Chambers, E. T.NASA Ames Research CenterUNSPECIFIED
Csengeri, T.LAB, University of BordeauxUNSPECIFIED
Graf, U.KOSMA, I. Physikalisches Institut der Universität Köln, Köln, GermanyUNSPECIFIED
Gusdorf, A.LERMA, ParisUNSPECIFIED
Jacobs, K.KOSMA, I. Physikalisches Institut der Universität Köln, Köln, GermanyUNSPECIFIED
Justen, M.KOSMA, I. Physikalisches Institut Universität zu KölnUNSPECIFIED
Kabanovic, S.KOSMA, Uni KölnUNSPECIFIED
Karim, R.Department of Astronomy, University of MarylandUNSPECIFIED
Luisi, M.Department of Physics and Astronmy, West Virginia UniversityUNSPECIFIED
Menten, K.Max-Planck-Institut für RadioastronomieUNSPECIFIED
Mertens, M.I. Physikalisches Institut der Universität zu KölnUNSPECIFIED
Mookerjea, B.Tata Institute of Fundamental Research, MumbaiUNSPECIFIED
Ossenkopf-Okada, V.Uni KölnUNSPECIFIED
Pabst, C.Leiden Observatory, Leiden UniversityUNSPECIFIED
Pound, M. W.LPENS, LERMNA, Universite de ParisUNSPECIFIED
Richter, HeikoHeiko.Richter (at) dlr.deUNSPECIFIED
Reyes, N.Max-Planck-Institut für Radioastronomie, Bonn; Departamento de Ingenieria Eléctrica, Universidad de Chile, Santiago, ChileUNSPECIFIED
Ricken, OliverMax-Planck-Institut für Radioastronomie, BonnUNSPECIFIED
Röllig, M.Uni KölnUNSPECIFIED
Russeil, D.CNES, LAM, MarseilleUNSPECIFIED
Sanches-Monge, A.Uni KölnUNSPECIFIED
Sandell, GöranUniversity of HawaiiUNSPECIFIED
Tiwari, M.University of MarylandUNSPECIFIED
Wiesemeyer, H.Max- Planck-Institut für Radioastronomie, BonnUNSPECIFIED
Wolfire, M.University of MarylandUNSPECIFIED
Wyrowski, F.Max-Planck-Institut für RadioastronomieUNSPECIFIED
Zavagno, A.CNES, LAM, MarseilleUNSPECIFIED
Tielens, A. G. G. M.University of Maryland + University of HawaiiUNSPECIFIED
Date:October 2020
Journal or Publication Title:Publications of the Astronomical Society of the Pacific
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:132
Publisher:Institute of Physics (IOP) Publishing
ISSN:0004-6280
Status:Published
Keywords:Giant molecular clouds – Astronomical instrumentation – H II regions – Interstellar clouds – Interstellar filaments – Molecular clouds – Observatories – Stellar wind bubbles – Submillimeter astronomy
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Richter, Dr.rer.nat. Heiko
Deposited On:21 Sep 2020 12:37
Last Modified:21 Sep 2020 12:37

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