2020JAVSO..48..111B

Query : 2020JAVSO..48..111B

2020JAVSO..48..111B - J. Am. Assoc. Variable star obs., 48, 111 (2020/June-0)

Light Curve Analysis of 33 Pulsating Red Giant Stars.

BLACKHAM K.M.

Abstract (from CDS):

This project sought to use the AAVSO vstar software package to confirm the classification and periodicity of 33 pulsating red giant stars listed within the AAVSO International Database and look for changes in their periodicity over time. V826 Cas and V451 Cep were found to be semiregular with periods of 419 and 385.4 days, respectively. There was no evidence that GO Peg is semiregular; the data are consistent with its being an irregular star. BR CVn has a period of 860 days. V854 Cas, TU CVn, and miu Cep show variations to their periodicity that, while within the few percentage wanderings typical of these stars, may be the beginnings of longer-term changes and warrant further investigation.

Journal keyword(s):

Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.

Simbad objects: 32

View the references in ADS

Number of rows : 32

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	* 47 Psc	LP*	00 28 02.9147612952	+17 53 35.257375248	8.53	6.71	5.06	3.32	1.78	M3III	111	0
2	V* V826 Cas	C*	00 35 02.7475102176	+61 19 02.140780116			12.86	10.35		C7,4e	25	0
3	V* BZ And	AB*	00 37 37.7436547944	+45 36 15.291066996		9.59	8.21			M5	19	0
4	V* W Cas	C*	00 54 53.8485356496	+58 33 49.148976420		11.32	11.32	9.32		C9,1e	145	0
5	V* V418 Cas	S*	01 12 59.7990264552	+62 10 46.931784852					10.20	S7/2e	26	0
6	V* KK Per	s*r	02 10 15.7846748496	+56 33 32.663347416	12.32	9.96	7.74	5.86	4.29	M2Iab-Ib	108	0
7	V* R Ari	Mi*	02 16 07.1127601296	+25 03 23.667751296		10.06	7.40	8.08		M3-6e	115	0
8	V* W And	S*	02 17 32.9612209924	+44 18 17.757276489		9.62		7.39		S7-8/1e-M7Se	225	1
9	LEE 254	C*	03 09 45.8249928600	+45 57 55.552783680		12.82	10.15	10.06		C5+,4e	20	0
10	V* R Aur	Mi*	05 17 17.6915798904	+53 35 10.031931312		10.82	10.04	6.12		M6.5-8.5e	240	0
11	V* V Cam	Mi*	06 02 32.2682825832	+74 30 27.210065112		11.99	10.98			M7	120	0
12	V* X Aur	Mi*	06 12 13.3836194376	+50 13 40.434769452		12.70	11.20	12.34		M3-5e	90	1
13	V* TV UMa	LP*	11 45 35.0396550384	+35 53 39.653657880		8.39	7.0			M5III	45	0
14	V* RU Crt	AB*	11 51 06.4589026632	-11 12 28.190407860		9.30	8.13			M4/5III	34	0
15	V* TU CVn	LP*	12 54 56.5204176096	+47 11 48.200441856	8.96	7.39	5.84			M5-III-IIIa	103	0
16	V* RY Dra	C*	12 56 25.9112361600	+65 59 39.811665876	15.56	9.44	6.34	4.34	2.91	C-N3III:	248	0
17	V* BR CVn	LP*	13 23 05.4894912888	+47 00 07.176394584		8.24	6.72			M4III	28	0
18	V* R Cam	S*	14 17 51.0361093608	+83 49 53.840253360		11.33	9.74			S2-6.5/2.5-6e	81	0
19	V* R Boo	Mi*	14 37 11.5761577632	+26 44 11.656214052		9.77	6.20			M4-8e	181	0
20	* 34 Boo	LP*	14 43 25.3625454312	+26 31 40.272181810	8.44	6.46	4.79	3.37	2.11	M3-III	119	0
21	IRAS 16490+0823	Mi*	16 51 25.1019334632	+08 18 51.366173976		16.59	15.15	13.54		M7	22	0
22	* 13 Lyr	LP*	18 55 20.1023376286	+43 56 45.922489780	7.00	5.59	4.00	1.95	0.04	M4.5III	324	1
23	V* UX Dra	C*	19 21 35.5182299784	+76 33 34.557161688		8.81	5.94			C-N5	206	0
24	V* V336 Vul	s*r	19 34 41.9086214616	+23 53 22.349121972		10.82	8.60			M2/3I	26	0
25	HD 350668	Pu*	19 49 26.5769532288	+18 51 24.299857116		10.48	8.84			K7	8	0
26	V* MV Del	LP*	20 34 16.3509643632	+19 31 50.128490820		8.89	7.34			M3	15	0
27	V* T Cyg	AB*	20 47 10.7523451296	+34 22 26.841017100		6.224	4.930	5.33		K3III	79	0
28	V* EV Aqr	Mi*	21 06 17.8529113488	+00 52 43.855927788						~	17	0
29	MSB 72	C*	22 32 26.8353176256	+58 37 05.804850000						C4,4	37	0
30	V* GO Peg	LP*	22 55 00.9740264736	+19 33 35.024486040		9.08	7.45			~	27	0
31	IRC +70202	Mi*	23 52 09.0173666784	+66 34 49.697204232				13.62		M10III	24	0
32	NSV 24346	V*	~	~						~	1	0

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