Herschel SPIRE FTS spectral mapping calibration
نویسندگان
چکیده
منابع مشابه
Flux calibration of the Herschel -SPIRE photometer
We describe the procedure used to flux calibrate the three-band submillimetre photometer in the Spectral and Photometric Imaging Receiver instrument on the Herschel Space Observatory. This includes the equations describing the calibration scheme, a justification for using Neptune as the primary calibration source, a description of the observations and data processing procedures used to derive f...
متن کاملIn-flight calibration of the Herschel-SPIRE instrument*
SPIRE, the Spectral and Photometric Imaging REceiver, is the Herschel Space Observatory’s submillimetre camera and spectrometer. It contains a three-band imaging photometer operating at 250, 350 and 500 μm, and an imaging Fourier-transform spectrometer (FTS) covering 194−671 μm (447−1550 GHz). In this paper we describe the initial approach taken to the absolute calibration of the SPIRE instrume...
متن کاملPhysics based calibration of the Herschel/SPIRE bolometers
The bolometers (and readout circuitry) in the SPIRE instrument on the Herschel Space Observatory are among the best understood and well characterised of any sub-mm astronomy instrument to date. SPIRE contains five arrays of NTD germanium spiderweb bolometers with up to 139 pixels per array. Their behaviour has been shown to be extremely stable as seen by repeated measurements in the years betwe...
متن کاملFirst detection of the methylidyne cation (CH) fundamental rotational line with the Herschel/SPIRE FTS
Aims. To follow the species chemistry arising in diverse sources of the Galaxy with Herschel. Methods. SPIRE FTS sparse sampled maps of the Orion bar & compact HII regions G29.96-0.02 and G32.80+0.19 have been analyzed. Results. Beyond the wealth of atomic and molecular lines detected in the high-resolution spectra obtained with the FTS of SPIRE in the Orion Bar, one emission line is found to l...
متن کاملMapping the interstellar medium in galaxies with Herschel!/SPIRE
The standard method of mapping the interstellar medium in a galaxy, by observing the molecular gas in the CO 1-0 line and the atomic gas in the 21-cm line, is largely limited with current telescopes to galaxies in the nearby universe. In this letter, we use SPIRE observations of the galaxies M 99 and M 100 to explore the alternative approach of mapping the interstellar medium using the continuu...
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ژورنال
عنوان ژورنال: Experimental Astronomy
سال: 2014
ISSN: 0922-6435,1572-9508
DOI: 10.1007/s10686-013-9367-9