An Improved Metallicity Calibration with UBV Photometry
S. Karaali A C , S. Bilir B , S. Ak B , E. Yaz B and B. Coşkunoğlu BA Beykent University, Faculty of Science and Letters, Department of Mathematics and Computer, Beykent Ayazağa Campus, 34398, Istanbul, Turkey
B Istanbul University, Faculty of Sciences, Department of Astronomy and Space Sciences, 34119, Istanbul, Turkey
C Corresponding author. Email: karsa@istanbul.edu.tr
Publications of the Astronomical Society of Australia 28(2) 95-106 https://doi.org/10.1071/AS10026
Submitted: 14 6 2010 Accepted: 9 2 2011 Published: 16 June 2011
Abstract
We used the data of 701 stars covering the colour index interval 0.32 < B – V ≤ 1.16, with metallicities –1.76 ≤ [Fe/H] ≤ +0.40 dex. The data were taken from the PASTEL catalogue and estimated metallicity-dependent guillotine factors, which provide a more accurate metallicity calibration. We reduced the metallicities of 11 different authors to the metallicities of Valenti & Fischer (2005), and thus obtained a homogeneous set of data which increased the accuracy of the calibration, i.e. [Fe/H] = –14.316δ0.6 2 – 3.557δ0.6 + 0.105. Comparison of the metallicity residuals for two sets of data based on the metallicity-dependent guillotine factors with the ones obtained via metal-free guillotine factors shows that metallicities estimated by means of the new guillotine factors are more accurate than the other ones. This advantage can be used in the metallicity gradient investigation of the Galactic components, i.e. thin disc, thick disc, and halo.
Keywords: stars: abundances, stars: metallicity calibration, stars: metal poor
References
Ak, S., Bilir, S., Karaali, S. and Buser, R., 2007a, AN, 328, 169Ak, S., Bilir, S., Karaali, S., Buser, R. and Cabrera-Lavers, A., 2007b, NewA, 12, 605
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2sXnvF2isr8%3D&md5=cc69453b0cd521af822616761e223dccCAS |
Bahcall, J. N. and Soneira, R. M., 1980, ApJS, 44, 73
| Crossref | GoogleScholarGoogle Scholar |
Buser, R. and Kurucz, R. L., 1978, A&A, 70, 555
Buser, R. & Kurucz, R. L., 1985, Calibration of fundamental stellar quantities; Proceedings of the Symposium, Como, Italy, May 24–29, 1984 (Dordrecht: D. Reidel Publishing Co.), 513
Buser, R. and Fenkart, R. P., 1990, A&A, 239, 243
Buser, R. and Kurucz, R. L., 1992, A&A, 264, 557
Cameron, L. M., 1985, A&A, 152, 250
| 1:CAS:528:DyaL28Xkt1Grug%3D%3D&md5=6e32b06757b97184ce9f79abe0248ad7CAS |
Carney, B. W., 1979, ApJ, 233, 211
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaE1MXmt1Sjtbw%3D&md5=69e389fbbcb5f7e5a0c747586781ecedCAS |
Cayrel de Strobel, G., Soubiran, C. and Ralite, N., 2001, A&A, 373, 159
| Crossref | GoogleScholarGoogle Scholar |
Fuhrmann, K., 2008, MNRAS, 384, 173
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1cXjtFelsrg%3D&md5=72e4c819a4a8d6c9cd89a0f6790b3211CAS |
Hauck, B., Nitschelm, C., Mermilliod, M. and Mermilliod, J.-C., 1990, A&AS, 85, 989
Karaali, S., Bilir, S., Karataş, Y. and Ak, S., 2003, PASA, 20, 165
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3sXmt1Oqsrc%3D&md5=ca0935061878a9a247d0ab588702e913CAS |
Karataş, Y. and Schuster, W., 2006, MNRAS, 371, 1793
| Crossref | GoogleScholarGoogle Scholar |
Lejeune, Th., Cuisinier, F. and Buser, R., 1997, A&AS, 125, 229
| Crossref | GoogleScholarGoogle Scholar |
Luck, R. E. and Heiter, U., 2006, AJ, 131, 3069
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28XmtFeksLs%3D&md5=726e1057de6b64edb1f2d2c9c7badf91CAS |
Marshall, D. J., Robin, A. C., Reylé, C., Schultheis, M. and Picaud, S., 2006, A&A, 453, 635
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28Xns12rtrw%3D&md5=b9f89c2234cacec95847f2abce2b4220CAS |
Mishenina, T. V., Soubiran, C., Kovtyukh, V. V. and Korotin, S. A., 2004, A&A, 418, 551
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXltFyguro%3D&md5=5a685d6ace5d2dbd8e218f7c5110748aCAS |
Nissen, P. E., Primas, F., Asplund, M. and Lambert, D. L., 2002, A&A, 390, 235
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD38XmvVWrt7o%3D&md5=77908e5870dcb25f418a1238c2481237CAS |
Ramirez, I. and Melendez, J., 2005, ApJ, 626, 446
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2MXmsFOluro%3D&md5=45dd648ec6bd82f973347bbe53d75518CAS |
Roman, N. G., 1955, ApJS, 2, 195
| Crossref | GoogleScholarGoogle Scholar |
Ryan, S. G. and Smith, I. M., 2003, MNRAS, 341, 199
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3sXkt1Gnu7s%3D&md5=4007629f544804c2b1b34b9a534cfd0cCAS |
Sandage, A. and Eggen, O. J., 1959, MNRAS, 119, 278
Sandage, A., 1969, ApJ, 158, 1115
| Crossref | GoogleScholarGoogle Scholar |
Santos, N. C., Israelian, G. and Mayor, M., 2004, A&A, 415, 1153
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXjtFGmsr8%3D&md5=8ce9c0119cf9b13d0bd871b7fdc65c0aCAS |
Schlegel, D. J., Finkbeiner, D. P. and Davis, M., 1998, ApJ, 500, 525
| Crossref | GoogleScholarGoogle Scholar |
Schwarzschild, M., Searle, L. and Howard, R., 1955, ApJ, 122, 353
| Crossref | GoogleScholarGoogle Scholar |
Soubiran, C., Le Campion, J.-F., Cayrel de Strobel, G. and Caillo, A., 2010, A&A, 515, A111
| Crossref | GoogleScholarGoogle Scholar |
Sousa, S. G., Santos, N. C., Mayor, M., Udry, S., Casagrande, L., Israelian, G., Pepe, F., Queloz, D. and Monteiro, M. J. P. F. G., 2008, A&A, 487, 373
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1cXhtFGhurbE&md5=bdeeb8ddac8e708646cc99c6c0a1f143CAS |
Spite, M., Francois, P., Nissen, P. E. and Spite, F., 1996, A&A, 307, 172
| 1:CAS:528:DyaK28XisVCgsLw%3D&md5=3bc357740e6e65aa3c3e0345fbe5bdb5CAS |
Strömgren, B., 1966, ARA&A, 4, 433
| Crossref | GoogleScholarGoogle Scholar |
Tomkin, J. and Lambert, D. L., 1999, ApJ, 523, 234
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK1MXmsFenurw%3D&md5=50118dec8d7a67f141221f11110d59c4CAS |
Trefzger, Ch. F., Pel, J. W. and Gabi, S., 1995, A&A, 304, 381
| 1:CAS:528:DyaK28XpvF2rsg%3D%3D&md5=a88279de239ad15db50de28aa85af7b3CAS |
Valenti, J. A. and Fischer, D. A., 2005, ApJS, 159, 141
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2MXot1Gjtbg%3D&md5=71794c5538c4406547c6c057ee02c39aCAS |
van Leeuwen, F., 2007, ASSL, 350,
Vandenberg, D. A. and Bell, R. A., 1985, ApJS, 58, 561
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaL2MXltFaru74%3D&md5=a962dc6d0587d104941a7a393eaca4bfCAS |
Wallerstein, G. and Carlson, M., 1960, ApJ, 132, 276
| Crossref | GoogleScholarGoogle Scholar |
Wallerstein, G., 1962, ApJS, 6, 407
| Crossref | GoogleScholarGoogle Scholar |
Walraven, Th. and Walraven, J. H., 1960, Bull. Astron. Inst. Netherlands, 15, 67
Wildey, R. L., Burbidge, E. M., Sandage, A. R. and Burbidge, G. R., 1962, ApJ, 135, 94
| Crossref | GoogleScholarGoogle Scholar |
Yaz, E. and Karaali, S., 2010, NewA, 15, 234
| Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1MXhtlens7vL&md5=31e4286f438a623dd9590aa880e32f3eCAS |