TY - JOUR
T1 - CCD photometric search for peculiar stars in open clusters. V. NGC 2099, NGC 3114, NGC 6204, NGC 6705 and NGC 6756
AU - Paunzen, Ernst
AU - Pintado, Olga
AU - Maitzen, Hans Michael
N1 - DOI: 10.1051/0004-6361:20031065
Coden: AAEJA
Affiliations: Institut für Astronomie, Universität Wien, Türkenschanzstr. 17, 1180 Wien, Austria; Zentraler Informatikdienst, Universität Wien, Universitätsstr. 7, 1010 Wien, Austria; Departamento de FiŽsica, Fac. de Cie. Exact./Tecn., Univ. Nacional de TucumaŽn, Argentina; Consejo Nac. Invest. Cie./Tec. R.A.
Adressen: Paunzen, E.; Institut für Astronomie; Universität Wien; Türkenschanzstr. 17 1180 Wien, Austria; email: [email protected]
Source-File: AstroScopus.csv
Import aus Scopus: 2-s2.0-0348156120
Importdatum: 14.12.2006 13:56:23
PY - 2003
Y1 - 2003
N2 - We have investigated 1008 objects in the area of five intermediate age open clusters (NGC 2099, NGC 3114, NGC 6204, NGC 6705 and NGC 6756) via the narrow band da-system. The detection limit for photometric peculiarity is very low (always less than 0.009 mag) due to the high number of individual frames used (193 in total). We have detected six peculiar objects in NGC 6705 and NGC 6756 from which one in the latter is almost certainly an unreddened late type foreground star. The remaining five stars are probably cluster members and bona fide chemically peculiar objects (two are ? Bootis type candidates). Furthermore, we have investigated NGC 3114, a cluster for which already photoelectric da-measurements exist. A comparison of the CCD and photoelectric values shows very good agreement. Again, the high capability of our CCD da-photometric system to sort out true peculiar objects together with additional measurements from broad or intermediate band photometry is demonstrated.
AB - We have investigated 1008 objects in the area of five intermediate age open clusters (NGC 2099, NGC 3114, NGC 6204, NGC 6705 and NGC 6756) via the narrow band da-system. The detection limit for photometric peculiarity is very low (always less than 0.009 mag) due to the high number of individual frames used (193 in total). We have detected six peculiar objects in NGC 6705 and NGC 6756 from which one in the latter is almost certainly an unreddened late type foreground star. The remaining five stars are probably cluster members and bona fide chemically peculiar objects (two are ? Bootis type candidates). Furthermore, we have investigated NGC 3114, a cluster for which already photoelectric da-measurements exist. A comparison of the CCD and photoelectric values shows very good agreement. Again, the high capability of our CCD da-photometric system to sort out true peculiar objects together with additional measurements from broad or intermediate band photometry is demonstrated.
U2 - 10.1051/0004-6361:20031065
DO - 10.1051/0004-6361:20031065
M3 - Article
SN - 0004-6361
VL - 412
SP - 721
EP - 725
JO - Astronomy & Astrophysics
JF - Astronomy & Astrophysics
IS - 3
ER -