DIVA - An interferometric minisatellite for astrometry and photometry

被引：14

作者：

Bastian, U

Roser, S

Hog, E

Mandel, H

Seifert, W

Wagner, S

Quirrenbach, A

Schalinski, C

Schilbach, E

Wicenec, A

机构：

[1] COPENHAGEN UNIV OBSERV,DK-2100 COPENHAGEN,DENMARK

[2] LANDESSTERNWARTE HEIDELBERG,D-69117 HEIDELBERG,GERMANY

[3] MAX PLANCK INST EXTRATERR PHYS,D-85748 GARCHING,GERMANY

[4] INST WELTRAUMSENSOR,D-12489 BERLIN,GERMANY

[5] UNIV POTSDAM,WIP ASTRON,D-14482 POTSDAM,GERMANY

[6] UNIV TUBINGEN,INST ASTRON,D-72076 TUBINGEN,GERMANY

来源：

ASTRONOMISCHE NACHRICHTEN | 1996年 / 317卷 / 04期

关键词：

interferometric satellite; astrometry; photometry;

D O I：

10.1002/asna.2113170407

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose a small interferometer on a minisatellite, named DIVA (Deutsches Interferometer fur Vielkanalphotometrie und Astrometrie), to perform astrometric and photometric observations of at least one million stars. It would exceed the performance of Hipparcos in all important parameters. With a possible launch in 2002 DIVA would provide for all stars brighter than V = 10.(m)5 parallaxes better than 0.8 milliarcseconds (mas) proper motions better than 2 mas/y broad-band photometry with a typical accuracy of 0.002 mag multi-channel intermediate-band photometry with a typical accuracy of 0.01 to 0.02 mag For the 100 000 stars observed by Hipparcos, proper motions with a typical accuracy of 0.1 to 0.2 mas/y and parallaxes of 0.3 to 0.5 mas can be obtained in combination with the Hipparcos results. The scientific potential of this mission and a possible layout of its optical system are described in this paper.

引用

页码：281 / 288

页数：8