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Titolo:
THE HAMBURG QUASAR MONITORING PROGRAM (HQM) AT CALAR-ALTO .2. LIGHTCURVES OF WEAKLY VARIABLE OBJECTS
Autore:
SCHRAMM KJ; BORGEEST U; KUHL D; VONLINDE J; LINNERT MD;
Indirizzi:
HAMBURGER STERNWARTE,GOJENBERGSWEG 112 W-2050 HAMBURG 80 GERMANY
Titolo Testata:
Astronomy & Astrophysics. Supplement series
fascicolo: 3, volume: 104, anno: 1994,
pagine: 473 - 480
SICI:
0365-0138(1994)104:3<473:THQMP(>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
RADIO-SOURCES; VARIABILITY; LIGHT;
Keywords:
QUASARS, GENERAL; TECHNIQUES, PHOTOMETRIC;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
K.J. Schramm et al., "THE HAMBURG QUASAR MONITORING PROGRAM (HQM) AT CALAR-ALTO .2. LIGHTCURVES OF WEAKLY VARIABLE OBJECTS", Astronomy & Astrophysics. Supplement series, 104(3), 1994, pp. 473-480

Abstract

HQM is an optical broad-band photometric monitoring program carried out since Sept. 1988. We use a CCD camera equipped to the MPIA 1.2 m telescope. Fully automatic photometric reduction relative to stars in the frames is done within a few minutes after each exposure, thus interesting brightness changes can be followed in detail. The typical photometric error is 1-2 % for a 17.5 mag quasar. We here present light curves already evaluated but not shown in Paper I. We also discuss existing literature data.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/07/20 alle ore 13:12:21