Peremennye Zvezdy

"Peremennye Zvezdy",
Prilozhenie
,
vol. 10, N 1 (2010)

Eclipsing Variables from the MACHO Galactic Bulge Scutum Fields

K. Bernhard#1,2, J. Greaves#3
#1. Linz, Austria;
#2. Bundesdeutsche Arbeitsgemeinschaft fuer Veraenderliche Sterne e.V. (BAV), D-12169 Berlin, Germany;
#3. Northants, England, UK

Received:   11.01.2010;   accepted:   25.01.2010
(E-mail for contact: klaus.bernhard@liwest.at)


#NameOtherCoord (J2000)TypeMaxMinSystemPeriodEpoch (JD)typeSpCommentL.CurveFind.ChartData
1 MACHO 303.45079.4018 30 59.66, -15 18 06.7EW14.9515.50R0.3410722450531.269min Comm. 1303_45079_40.jpg 303_45079_40.txt
2 MACHO 302.45091.7418 31 04.42, -14 27 12.1EA14.1015.65R1.5177852450662.035min Comm. 2302_45091_74.jpg 302_45091_74.txt
3 MACHO 302.45093.30818 31 04.54, -14 20 47.3EA16.7018.05R5.131452450218.202min Comm. 3302_45093_308.jpg 302_45093_308.txt
4 MACHO 301.45275.10518 31 13.58, -13 23 19.7EW15.2015.65R0.3269782450544.291min Comm. 4301_45275_105.jpg 301_45275_105.txt
5 MACHO 301.45269.2618 31 19.10, -13 48 58.6EA13.4014.00R1.0414822449896.118min Comm. 5301_45269_26.jpg 301_45269_26.txt
6 MACHO 301.45274.818 31 23.58, -13 29 24.8EB13.3013.90R1.2678872450568.249min Comm. 6301_45274_8.jpg 301_45274_8.txt
7 MACHO 302.45431.266318 31 31.12, -14 13 55.1EB16.6517.55R0.4156412450572.268min Comm. 7302_45431_2663.jpg 302_45431_2663.txt
8 MACHO 301.45436.10018 31 39.22, -13 52 34.4EW15.4515.85R0.2574982451376.884min Comm. 8301_45436_100.jpg 301_45436_100.txt
9 MACHO 303.45419.21018 31 42.54, -15 01 04.1EW15.9016.45R0.6191382450680.952min Comm. 9303_45419_210.jpg 303_45419_210.txt
10 MACHO 302.45762.14418 32 08.83, -14 31 58.3EA15.6016.40R1.7786502450682.990min Comm. 10302_45762_144.jpg 302_45762_144.txt
11 MACHO 301.45782.5618 32 18.61, -13 11 12.7EA14.9015.70R2.0873552450176.306min Comm. 11301_45782_56.jpg 301_45782_56.txt
12 MACHO 301.45950.1518 32 31.94, -13 11 11.4EB13.8514.25R1.1410462451313.216min Comm. 12301_45950_15.jpg 301_45950_15.txt
13 MACHO 301.46115.23918 32 39.29, -13 25 57.8EW16.1016.60R0.3734562451317.138min Comm. 13301_46115_239.jpg 301_46115_239.txt
14 MACHO 302.46099.35018 32 39.40, -14 28 29.4EW16.6517.35R0.4045132449859.181min Comm. 14302_46099_350.jpg 302_46099_350.txt
15 MACHO 301.46118.6318 32 49.99, -13 14 11.0EW15.2515.65R0.3451042450676.962min Comm. 15301_46118_63.jpg 301_46118_63.txt
16 MACHO 302.46271.109018 32 55.54, -14 13 49.6EW16.0516.60R0.2987202451009.936min Comm. 16302_46271_1090.jpg 302_46271_1090.txt
17 MACHO 301.46285.11018 32 59.65, -13 16 22.4EW15.2015.75R0.6914142450619.110min Comm. 17301_46285_110.jpg 301_46285_110.txt
18 MACHO 301.46447.45618 33 25.83, -13 40 46.6EW16.7017.65R0.3089192450981.974min Comm. 18301_46447_456.jpg 301_46447_456.txt
19 MACHO 302.46438.37218 33 26.95, -14 15 23.2EW16.6017.15R0.3378332449816.296min Comm. 19302_46438_372.jpg 302_46438_372.txt
20 MACHO 301.46780.25118 33 48.34, -13 53 05.0EW16.6017.15R0.4271882451302.107min Comm. 20301_46780_251.jpg 301_46780_251.txt

Comments:


1. MinII = 15.45.

2. MinII = 14.20.

3. MinII = 16.80.

4. MinII = 15.65.

5. MinII = 13.50.

6. MinII = 13.65.

7. MinII = 17.05.

8. MinII = 15.80.

9. MinII = 16.45.

10. MinII = 15.65.

11. MinII = 15.65.

12. MinII = 14.15.

13. MinII = 16.55.

14. MinII = 17.10.

15. MinII = 15.60.

16. MinII = 16.50.

17. MinII = 15.70.

18. MinII = 17.55.

19. MinII = 17.00.

20. MinII = 17.15. The horizontal line is an artefact of the data, it cannot be removed without damaging the data for the star.

Remarks:
Presented are the details for twenty eclipsing variables found from the Scutum MACHO Galactic Bulge fields 301-303 epoch photometry as publicly served via their new Virtual Observatory interface (Smillie 2009) and as downloaded and sourced via TOPCAT.

Each object was checked against the Strasbourg CDS Vizier service and the International Variable Star Index (http://www.aavso.org/vsx/) for pre-existence as an eclipsing binary in variability catalogues.

The astrometric positions were derived from the Carlsberg Meridian Catalog 14 (CMC14 2006) and 2MASS (Skrutskie et al. 2006) if available. The Macho R magnitudes were calculated from the instrumental R magnitudes using the formula given in Alcock et al. (1999). The programme AVE (GEA) was used for the data analysis.

Acknowledgements: This paper utilizes public domain data obtained by the MACHO Project, jointly funded by the US Department of Energy through the University of California, Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48, by the National Science Foundation through the Center for Particle Astrophysics of the University of California under cooperative agreement AST-8809616, and by the Mount Stromlo and Siding Spring Observatory, part of the Australian National University. The application TOPCAT (http://www.starlink.ac.uk/topcat) was used for the access to the data. Catalogue data served by the VizieR service of the CDS, Strasbourg, was used in this analysis.

References:
Alcock, C., Allsman, R.A., Alves, D.R., et al., 1999, PASP, 111, 1539
CMC14, 2006, Carlsberg Meridian Catalog 14, Centre de Donnees Astronomiques de Strasbourg, I/304
Skrutskie, M.F., Cutri, R.M., Stiening, R., et al., 2006, AJ, 131, 1163
Smillie, J.G., for the MACHO collaboration, 2009, arXiv:0910.5041



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