SpeX: A medium-resolution 0.8-5.5 micron spectrograph and imager for the NASA Infrared Telescope Facility

被引:1044
作者
Rayner, JT
Toomey, DW
Onaka, PM
Denault, AJ
Stahlberger, WE
Vacca, WD
Cushing, MC
Wang, S
机构
[1] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
[2] Univ Chicago, Ctr Engn, Chicago, IL 60637 USA
关键词
D O I
10.1086/367745
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present the design, construction, and performance of SpeX, a medium-resolution 0.8-5.5 mum cryogenic spectrograph and imager, now in operation at the 3.0 m NASA Infrared Telescope Facility (IRTF) on Mauna Kea. The design uses prism cross-dispersers and gratings to provide resolving powers up to Rsimilar to2000 simultaneously across 0.8-2.4, 1.9-4.2, or 2.4-5.5 mum, with a 15" long slit. A high-throughput low-resolution Rsimilar to200 prism mode is also provided for faint-object and occultation spectroscopy. Single-order 60" long-slit modes with resolving powers up to Rsimilar to2000 are available for extended objects. The spectrograph employs an Aladdin 3 1024x1024 InSb array and uses narrow slits and a spatial scale of 0".15 pixel(-1) for optimum sensitivity on point sources. An autonomous infrared slit viewer is used for object acquisition, infrared guiding, and scientific imaging in the wavelength range 0.8-5.5 mum. The imager employs an Aladdin 2 512x512 InSb array that covers a 60" x 60" field of view at 0".12 pixel. SpeX was successfully commissioned on IRTF during 2000 May, June, and July. Astronomical observations are presented to illustrate performance.
引用
收藏
页码:362 / 382
页数:21
相关论文
共 10 条
[1]   FeH absorption in the near-infrared spectra of late M and L dwarfs [J].
Cushing, MC ;
Rayner, JT ;
Davis, SP ;
Vacca, WD .
ASTROPHYSICAL JOURNAL, 2003, 582 (02) :1066-1072
[2]   DEMONSTRATION OF AN ALGORITHM FOR READ-NOISE REDUCTION IN INFRARED ARRAYS [J].
FOWLER, AM ;
GATLEY, I .
ASTROPHYSICAL JOURNAL, 1990, 353 (01) :L33-L34
[3]  
GREENE TP, 1993, P SOC PHOTO-OPT INS, V1946, P313, DOI 10.1117/12.158684
[4]   The missing link: Early methane ("T") dwarfs in the Sloan Digital Sky Survey [J].
Leggett, SK ;
Geballe, TR ;
Fan, XH ;
Schneider, DP ;
Gunn, JE ;
Lupton, RH ;
Knapp, GR ;
Strauss, MA ;
McDaniel, A ;
Golimowski, DA ;
Henry, TJ ;
Peng, E ;
Tsvetanov, ZI ;
Uomoto, A ;
Zheng, W ;
Hill, GJ ;
Ramsey, LW ;
Anderson, SF ;
Annis, JA ;
Bahcall, NA ;
Brinkmann, J ;
Chen, B ;
Csabai, I ;
Fukugita, M ;
Hennessy, GS ;
Hindsley, RB ;
Ivezic, I ;
Lamb, DQ ;
Munn, JA ;
Pier, JR ;
Schlegel, DJ ;
Smith, JA ;
Stoughton, C ;
Thakar, AR ;
York, DG .
ASTROPHYSICAL JOURNAL, 2000, 536 (01) :L35-L38
[5]   OBSERVATIONS OF THE OH AIRGLOW EMISSION [J].
MAIHARA, T ;
IWAMURO, F ;
YAMASHITA, T ;
HALL, DNB ;
COWIE, LL ;
TOKUNAGA, AT ;
PICKLES, A .
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1993, 105 (691) :940-944
[6]  
Schroeder D. J., 2000, OVERVIEW TIRE TECHNO, V2nd
[7]  
SHURE MA, 1994, P SOC PHOTO-OPT INS, V2198, P214
[8]   L-band photometry of L and T dwarfs [J].
Stephens, DC ;
Marley, MS ;
Noll, KS ;
Chanover, N .
ASTROPHYSICAL JOURNAL, 2001, 556 (02) :L97-L101
[9]  
TOKUNAGA AT, 1990, P SOC PHOTO-OPT INS, V1235, P131, DOI 10.1117/12.19082
[10]  
VACCA WD, 2003, IN PRESS PASP