J/A+A/535/A103 7mm spectral survey of PKS 1830-211 (Muller+, 2011)
Molecules at z=0.89: A 4-mm-rest-frame absorption-line survey
toward PKS 1830-211.
Muller S., Beelen A., Guelin M., Aalto S., Black J.H., Combes F., Curran S.,
Theule P., Longmore S.
<Astron. Astrophys. 535, A103 (2011)>
=2011A&A...535A.103M 2011A&A...535A.103M
ADC_Keywords: QSOs ; Spectroscopy
Keywords: ISM: abundances - ISM: molecules - galaxies: ISM -
quasars: absorption lines - quasars: individual: PKS1830-211
Abstract:
We present the results of a wide 7mm spectral survey of molecular
absorption lines arising in the disk of a z=0.89 spiral galaxy located
in front of the quasar PKS 1830-211. The survey was done with the
Australia Telescope Compact Array and covers the frequency interval
30-50GHz, corresponding to the rest-frame frequency interval 57-94GHz.
A total of 28 different species, plus 8 isotopic variants, were
detected toward the South-West absorption, located at about 2kpc from
the center of the z=0.89 galaxy, which makes it the extragalactic
object with the largest number of detected molecular species so far.
Description:
Observations were carried out with the Australian Telescope Compact
Array (ATCA) in two runs, a first one on 2009 September 1st and 2nd,
and a second on 2010 March 17th.
Objects:
-------------------------------------------------------
RA (2000) DE Designation(s)
-------------------------------------------------------
18 33 39.9 -21 03 40 PKS1830-211 = RX J1833.6-2103
-------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
spectrum.dat 46 39944 PKS 1830-211 spectrum
--------------------------------------------------------------------------------
Byte-by-byte Description of file: spectrum.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 F7.1 MHz Freq Sky frequency
9- 26 F18.16 --- Int ?=0 Intensity, normalized to the total continuum
level
28- 46 F19.16 --- Noise ?=-1 Noise (1 sigma - Gaussian statistics) level
associated to the datapoint (also normalized)
--------------------------------------------------------------------------------
Acknowledgements:
Sebastien Muller, mullers(at)chalmers.se
(End) Patricia Vannier [CDS] 20-Sep-2011