Schneider, N., Simon, R., Guevara, C., Buchbender, C., Higgins, R. D., Okada, Y., Stutzki, J., Guesten, R., Anderson, L. D., Bally, J., Beuther, H., Bonne, L., Bontemps, S., Chambers, E., Csengeri, T., Graf, U. U., Gusdorf, A., Jacobs, K., Justen, M., Kabanovic, S., Karim, R., Luisi, M., Menten, K., Mertens, M., Mookerjea, B., Ossenkopf-Okada, V., Pabst, C., Pound, M. W., Richter, H., Reyes, N., Ricken, O., Roellig, M., Russeil, D., Sanchez-Monge, A., Sandell, G., Tiwari, M., Wiesemeyer, H., Wolfire, M., Wyrowski, F., Zavagno, A. and Tielens, A. G. G. M. (2020). FEEDBACK: a SOFIA Legacy Program to Study Stellar Feedback in Regions of Massive Star Formation. Publ. Astron. Soc. Pac., 132 (1016). BRISTOL: IOP PUBLISHING LTD. ISSN 1538-3873

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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 mu m (1.9 THz) line of [Cii] and the 63 mu m (4.7 THz) line of [Oi]. 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 similar to 6700 arcmin(2)at 141) angular resolution for the [Cii] line and 63 for the [Oi] 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 [Cii] 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 [Oi] 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 Hiiregion bubbles, namely RCW49, RCW79, and RCW120. These [Cii] maps, together with the less explored [Oi] 63 mu m line, provide an outstanding database for the community. They will be made publically available and will trigger further studies and follow-up observations.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Schneider, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Simon, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Guevara, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Buchbender, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Higgins, R. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Okada, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stutzki, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Guesten, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Anderson, L. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bally, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beuther, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bonne, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bontemps, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chambers, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Csengeri, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Graf, U. U.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gusdorf, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jacobs, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Justen, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kabanovic, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Karim, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Luisi, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Menten, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mertens, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mookerjea, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ossenkopf-Okada, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pabst, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pound, M. W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Richter, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Reyes, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ricken, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Roellig, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Russeil, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sanchez-Monge, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sandell, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tiwari, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wiesemeyer, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wolfire, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wyrowski, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zavagno, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tielens, A. G. G. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-317620
DOI: 10.1088/1538-3873/aba840
Journal or Publication Title: Publ. Astron. Soc. Pac.
Volume: 132
Number: 1016
Date: 2020
Publisher: IOP PUBLISHING LTD
Place of Publication: BRISTOL
ISSN: 1538-3873
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
NEUTRAL ATOMIC PHASES; GAMMA-RAY EMISSION; INTERSTELLAR-MEDIUM; COMETARY GLOBULES; MOLECULAR CLOUDS; CLUMPY STRUCTURE; 1ST SUPERNOVA; DATA RELEASE; COSMIC-RAYS; M17 SWMultiple languages
Astronomy & AstrophysicsMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/31762

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