| | |
| | |
Stat |
Members: 3645 Articles: 2'501'711 Articles rated: 2609
19 April 2024 |
|
| | | |
|
Article overview
| |
|
ASTRO-F/FIS Observing Simulation: Detection Limits for Point Sources | Woong-Seob Jeong
; Soojong Pak
; Hyung Mok Lee
; Takao Nakagawa
; Jungjoo Sohn
; Insun Ahn
; Issei Yamamura
; Masaru Watanabe
; Mitsunobu Kawada
; Hiroshi Shibai
; | Date: |
23 Apr 2002 | Journal: | Publ.Astron.Soc.Jap. 55 (2003) 717 | Subject: | astro-ph | Affiliation: | 1, 2 and 3), Hyung Mok Lee , Takao Nakagawa , Jungjoo Sohn , Insun Ahn , Issei Yamamura , Masaru Watanabe , Mitsunobu Kawada , Hiroshi Shibai (Seoul Nat’l Univ., Korea Astronomy Observatory, ISAS, Nagoya Univ. | Abstract: | We describe the observing simulation software FISVI (FIS Virtual Instrument), which was developed for the Far-Infrared Surveyor (FIS) that will be on the Japanese infrared astronomy mission ASTRO-F. The FISVI has two purposes: one is to check the specifications and performances of the ASTRO-F/FIS as a whole; the other is to prepare input data sets for the data analysis softwares prior to launch. In the FISVI, special care was taken by introducing the "Compiled PSF (Point Spread Function)" to optimise inevitable, but time-consuming, convolution processes. With the Compiled PSF, we reduce the computation time by an order of magnitude. The photon and readout noises are included in the simulations. We estimate the detection limits for point sources from the simulation of virtual patches of the sky mostly consisting of distant galaxies. We studied the importance of source confusion for simple power-law models for N(>S), the number of sources brighter than S. We found that source confusion plays a dominant role in the detection limits only for models with rapid luminosity evolution for the galaxy counts, the evolution of which is suggested by recent observations. | Source: | arXiv, astro-ph/0204377 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |