Universität zu Köln

Risacher, C., Guesten, R., Stutzki, J., Huebers, H. -W., Bell, A., Buchbender, C., Buechel, D., Csengeri, T., Graf, U. U., Heyminck, S., Higgins, R. D., Honingh, C. E., Jacobs, K., Klein, B., Okada, Y., Parikka, A., Puetz, P., Reyes, N., Ricken, O., Riquelme, D., Simon, R. and Wiesemeyer, H. (2016). The upGREAT 1.9 THz multi-pixel high resolution spectrometer for the SOFIA Observatory. Astron. Astrophys., 595. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

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Abstract

We present a new multi-pixel high resolution (R greater than or similar to 10(7)) spectrometer for the Stratospheric Observatory for Far-Infrared Astronomy (SOFIA). The receiver uses 2 x 7-pixel subarrays in orthogonal polarization, each in an hexagonal array around a central pixel. We present the first results for this new instrument after commissioning campaigns in May and December 2015 and after science observations performed in May 2016. The receiver is designed to ultimately cover the full 1.8-2.5 THz frequency range but in its first implementation, the observing range was limited to observations of the [CII] line at 1.9 THz in 2015 and extended to 1.83-2.07 THz in 2016. The instrument sensitivities are state-of-the-art and the first scientific observations performed shortly after the commissioning confirm that the time efficiency for large scale imaging is improved by more than an order of magnitude as compared to single pixel receivers. An example of large scale mapping around the Horsehead Nebula is presented here illustrating this improvement. The array has been added to SOFIA's instrument suite already for ongoing observing cycle 4.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Risacher, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Guesten, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Stutzki, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Huebers, H. -W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bell, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Buchbender, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Buechel, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Csengeri, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Graf, U. U. UNSPECIFIED UNSPECIFIED UNSPECIFIED Heyminck, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Higgins, R. D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Honingh, C. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jacobs, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Klein, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Okada, Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED Parikka, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Puetz, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Reyes, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ricken, O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Riquelme, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Simon, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wiesemeyer, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-256702
DOI:	10.1051/0004-6361/201629045
Journal or Publication Title:	Astron. Astrophys.
Volume:	595
Date:	2016
Publisher:	EDP SCIENCES S A
Place of Publication:	LES ULIS CEDEX A
ISSN:	1432-0746
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Astronomy & Astrophysics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/25670