2003A&A...399..365B


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.24CET00:45:43

2003A&A...399..365B - Astronomy and Astrophysics, volume 399, 365-372 (2003/2-3)

A search for period changes in δ Scuti stars with the super-LOTIS sky patrol system.

BLAKE C., FOX D.W., PARK H.S. and WILLIAMS G.G.

Abstract (from CDS):

We have observed a sample of δ Scuti stars discovered by the ROTSE collaboration in 1999 with Super-LOTIS in order to characterize changes in their pulsation periods over a time baseline of roughly three years. Achieving these goals required the creation of an automated astrometric and photometric data reduction pipeline for the Super-LOTIS camera. Applying this pipeline to data from a June 2002 observing campaign, we detect pulsations in 18 objects, and find that in two cases the periods have changed significantly over the three years between the ROTSE and Super-LOTIS observations. Since theory predicts that evolutionary period changes should be quite small, sources of non-evolutionary period changes due to the interactions of pulsations modes are discussed.

Abstract Copyright:

Journal keyword(s): stars: oscillations - stars: variables: δ Scuti - techniques: photometric

VizieR on-line data: <Available at CDS (J/A+A/399/365): table1.dat>

CDS comments: Correspondence between names in table 1 and Simbad: ROTSE 9470 = ROTSE1 J165536.79+522244.6; ROTSE 4861 = ROTSE1 J173937.28+501202.0; ROTSE 3956 = ROT SE1 J125642.57+230907.2; ROTSE 3554 = ROTSE1 J134113.76+314725.5; ROTSE 1526 = ROTSE1 J140105.55+244216.2; ROTSE 3124 = ROTSE1 J141654.06+235243.9; ROTSE 3709 = ROTSE1 J142157.48+232656.5; ROTSE 7388 = ROTSE1 J143040.27+271327.3; ROTSE 4 837 = ROTSE1 J144519.37+352801.1; ROTSE 706 = ROTSE1 J152406.95+365200.9; ROTSE 9134 = ROTSE1 J153122.34+355254.4; ROTSE 917 = ROTSE1 J161520.21+354226.1; ROT SE 2573 = ROTSE1 J160230.00+373337.0; ROTSE 3232 = ROTSE1 J161009.33+355730.8; ROTSE 2275 = ROTSE1 J161427.99+303145.2; ROTSE 2592 = ROTSE1 J154947.10+235456. 6; ROTSE 2926 = ROTSE1 J160820.64+281244.1; ROTSE 2986 = ROTSE1 J160046.81+2415 40.7.

Simbad objects: 23

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Number of rows : 23

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* V1162 Ori dS* 05 32 01.9917190902 -07 15 24.659936685   10.3 9.9     ~ 45 0
2 V* RY Lep dS* 05 48 10.2617974702 -20 01 24.925632678   8.60 8.25     A9V 56 0
3 V* XX Pyx dS* 08 58 39.0320174189 -24 35 10.585991007           A4V 81 0
4 V* NS Com EB* 12 56 42.5668092534 +23 09 07.122123758     13.15     ~ 4 1
5 V* EH CVn EB* 13 41 13.7351630097 +31 47 25.395565332     13.00     ~ 14 1
6 V* GX Boo EB? 14 01 05.5602131256 +24 42 16.558639992   12.12 12.27     ~ 9 1
7 V* IX Boo dS* 14 16 53.6316521652 +23 52 45.941657357   13.78 13.16 13.06   ~ 3 1
8 ROTSE1 J142157.48+232656.5 dS* 14 21 57.4898238724 +23 26 56.273904749           ~ 3 1
9 V* KW Boo EB* 14 30 40.3771727769 +27 13 28.615119319     13.89     ~ 6 1
10 ROTSE1 J144519.37+352801.1 EB* 14 45 18.6163312968 +35 28 04.986982945     14.15     ~ 6 1
11 V* EH Lib dS* 14 58 55.9230082309 -00 56 53.009789430   10.09 9.83     A5 120 0
12 V* YZ Boo dS* 15 24 06.9993379382 +36 52 00.600888929 10.62 10.54 10.36     F0 112 1
13 V* BD CrB EB* 15 31 22.3791501527 +35 52 54.442715001     14.15     ~ 8 2
14 V* V475 Ser dS* 15 49 46.6223436824 +23 54 53.262807634       13.46   ~ 2 1
15 ROTSE1 J160046.81+241540.7 EB* 16 00 46.7078243448 +24 15 39.438725056   13.17 12.28 12.54   ~ 3 1
16 ROTSE1 J160230.00+373337.0 EB* 16 02 29.6042892669 +37 33 30.315577059   13.14 12.49 12.45   ~ 3 1
17 ROTSE1 J160820.64+281244.1 EB* 16 08 20.6171334163 +28 13 02.541368811     13.12     ~ 4 1
18 ROTSE1 J161009.33+355730.8 EB* 16 10 09.3201634156 +35 57 30.587551344   20.475   11.410   ~ 3 1
19 ROTSE1 J161427.99+303145.2 dS* 16 14 27.9947546227 +30 31 44.841310170   12.58 12.45     ~ 3 1
20 V* AW CrB EB* 16 15 20.1890722512 +35 42 26.262705309   11.46 11.12     ~ 16 1
21 ROTSE1 J165536.79+522244.6 dS* 16 55 36.8750590357 +52 22 43.882187693     13.25     ~ 5 1
22 1RXS J173936.5+501207 X 17 39 36.504 +50 12 07.02           ~ 2 0
23 V* V1098 Her EB* 17 39 37.2296301181 +50 12 02.658239047   12.80 12.62     ~ 10 1

    Equat.    Gal    SGal    Ecl

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2021.01.24-00:45:43

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