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

Full paper

View the reference in ADS

Number of rows : 23

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	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

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