Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· References in the article
· Citations to the Article (18) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (2)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Reconstructing reality: Strategies for sideband deconvolution
Authors:
Comito, C.; Schilke, P.
Affiliation:
AA(Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany ), AB(Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany )
Publication:
Astronomy and Astrophysics, v.395, p.357-371 (2002) (A&A Homepage)
Publication Date:
11/2002
Origin:
A&A
A&A Keywords:
surveys, submillimeter, line: identification, molecular data, methods: data analysis, methods: numerical
DOI:
10.1051/0004-6361:20021277
Bibliographic Code:
2002A&A...395..357C

Abstract

We present a study aimed at optimizing the observing strategy for double-sideband molecular line surveys, in order to achieve, for this kind of data, the best possible single-sideband reconstruction. The work is based on simulations of the acquisition of spectral line surveys with the HIFI instrument on board the Herschel Space Observatory, but our results can be applied to the general case. The reconstruction of the simulated data is obtained through the Maximum Entropy Method. The main factors responsible for degrading the quality of the reconstruction are taken into account: high rms noise in the data, pointing errors (particularly in the presence of intrinsic chemical structure in the source) and sideband imbalances. The presented results will allow the users of the new powerful submillimeter and THz telescopes, such as APEX, ALMA and Herschel, to make the most efficient use of their instruments for line survey work.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints