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J/A+AS/125/497      Theta Vir and 109 Vir uvby photometry (Adelman 1997)

On the possible variability of the main sequence A stars theta Virginis and 109 Virginis Adelman S.J. <Astron. Astrophys. Suppl. Ser. 125, 497 (1997)> =1997A&AS..125..497A (SIMBAD/NED BibCode)
ADC_Keywords: Stars, dwarfs ; Stars, A-type ; Photometry, uvby Keywords: stars: individual: theta Vir , 109 Vir ; stars: variables: other Abstract: Differential Stroemgren uvby photometric observations from the Four College Automated Photoelectric Telescope are used to examine the possible variability of the spectrophotometric standards θ Vir and 109 Vir. No evidence is found for variability within a season of observation. Small year to year differences are most likely due to unaccounted for extinction changes. Objects: -------------------------------------------- RA (2000) DE Designation(s) -------------------------------------------- 13 09 57.0 -05 32 18 theta Vir = HD 114330 14 46 15.2 +01 53 36 * 109 Vir = HD 130109 -------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2 77 231 uvby Photometry of Theta Vir table2b 77 64 Examination of Data on Nights for Theta Vir table3 77 380 uvby Photometry of 109 Vir table3b 77 202 Examination of Data on Nights for 109 Vir tablea 119 51 Averaged values
See also: J/A+AS/103/1 : 63 And, HD 192913, HR 8240 & 108 Aqr (Adelman+ 1994) J/A+AS/106/333 : Alpha And, HD 184905, HR 8216 & HR 8434 (Adelman+ 1994) J/A+AS/114/253 : HD 11187, HD 14940, HD 15144, 20 Eri, HR 8933 (Adelman+ 1995) J/A+AS/122/249 : HD 32633, 25 Sex, HR 7224 & HD 200311 (Adelman, 1997) J/A+AS/125/65 : HD 37776, HR 2258, HR 6958 & 108 Aqr (Adelman, 1997) J/PASP/109/9 : HR 1643, Theta Aur, 49 Cam, and HR 3724 (Adelman 1997) J/A+AS/128/245 : AR Aur, 3 Hya, 49 Cnc & BX Boo (Adelman 1997) J/A+AS/133/197 : 33 Tau, HD 50169 and HR 7786 (Adelman+ 1998) J/A+AS/134/53 : HD 15980, HR 1094, 33 Gem and HD 115708 (Adelman 1999) J/A+AS/136/111 : HD 35298, 19 Lyr, HD 192678 and HR 8216 (Adelman 1999) J/A+AS/136/379 : 45 Leo, HR 4330, 49 Her and HR 6718 (Adelman+ 1999) J/A+AS/146/13 : 20 Eri, HR 1297, 12 CMa, and HD 134214 (Adelman, 2000) J/A+A/368/225 : HR 5341, HD 142070, HR 6967 & HR 8434 (Adelman, 2001) J/A+A/390/1023 : HR 194, HD 32966, HD 171782, and HR 7911 (Adelman+, 2002) J/A+A/401/357 : 60 Tau, HR 1528, HR 8216, HR 8770 (Adelman+, 2003) Byte-by-byte Description of file: table2 table2b table3 table3b
Bytes Format Units Label Explanations
1- 12 F12.4 d HJD Heliocentric Julian Date 16- 21 F6.3 mag u(v-c) variable-comparison (v-c) u magnitude 24- 29 F6.3 mag u(ch-c) check-comparison (ch-c) u magnitude 32- 37 F6.3 mag v(v-c) variable-comparison (v-c) v magnitude 40- 45 F6.3 mag v(ch-c) check-comparison (ch-c) v magnitude 48- 53 F6.3 mag b(v-c) variable-comparison (v-c) b magnitude 56- 61 F6.3 mag b(ch-c) check-comparison (ch-c) b magnitude 64- 69 F6.3 mag y(v-c) variable-comparison (v-c) y magnitude 72- 77 F6.3 mag y(ch-c) check-comparison (ch-c) y magnitude
Byte-by-byte Description of file: tablea
Bytes Format Units Label Explanations
1- 9 A9 --- Star Star name 11- 20 A10 --- Per Period considered (1) 21- 26 F6.3 mag u(v-c) variable-comparison (v-c) u magnitude 28- 32 F5.3 mag e_u(v-c) ? rms uncertainty on (v-c) u magnitude 34- 38 F5.3 mag u(ch-c) check-comparison (ch-c) u magnitude 40- 44 F5.3 mag e_u(ch-c) ? rms uncertainty on (ch-c) u magnitude 46- 51 F6.3 mag v(v-c) variable-comparison (v-c) v magnitude 53- 57 F5.3 mag e_v(v-c) ? rms uncertainty on (v-c) v magnitude 59- 63 F5.3 mag v(ch-c) check-comparison (ch-c) v magnitude 65- 69 F5.3 mag e_v(ch-c) ? rms uncertainty on (ch-c) v magnitude 71- 76 F6.3 mag b(v-c) variable-comparison (v-c) b magnitude 78- 82 F5.3 mag e_b(v-c) ? rms uncertainty on (v-c) b magnitude 84- 88 F5.3 mag b(ch-c) check-comparison (ch-c) b magnitude 90- 94 F5.3 mag e_b(ch-c) ? rms uncertainty on (ch-c) b magnitude 96-101 F6.3 mag y(v-c) variable-comparison (v-c) y magnitude 103-107 F5.3 mag e_y(v-c) ? rms uncertainty on (v-c) y magnitude 109-113 F5.3 mag y(ch-c) check-comparison (ch-c) y magnitude 115-119 F5.3 mag e_y(ch-c) ? rms uncertainty on (ch-c) y magnitude
Note (1): For Theta Vir : year2: from 2448732.7901 to 2448807.6543 year3: from 2449008.9258 to 2449146.7282 year4: from 2449335.0287 to 2449476.8279 year5: from 2449736.0539 to 2449855.7760 For 109 Vir : year2: from 2448679.9591 to 2448765.7706 year3: from 2449009.9714 to 2449150.7427 year4: from 2449412.8808 to 2449502.7557 year5: from 2449746.9679 to 2449867.8048 For night averaged data: Per = HJD of the night of observation. Nyear4 : year 4 average 5 or more observations/night Nyear5 : average 5 or more observations/night
Acknowledgements: Saul J. Adelman Historical notes: There were an inversion between the b and v magnitude labels. This was corrected on 24-Apr-1998
(End) Patricia Bauer [CDS] 03-Feb-1997
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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