Publications
Topasna, G. A., Mateja, F., Kaltcheva, N., 2023, “BVRI polarization in direction of Stock 19”, Publications of the Astronomical Society of Japan, Volume 75, Issue 1
Topasna, G. A., Gibson, S. D., Kaltcheva, N., 2022, “Interstellar Extinction and Polarization of Stars in the Open Cluster NGC 6709”, The Publications of the Astronomical Society of the Pacific, Volume 134, Issue 1038, id.084301, 12 pp.
Kaltcheva, N., Paunzen, E. Prišegen, M., Golev, V., Watson, M., 2020, “Absolute Magnitudes of Early-type Supergiants from uvbyβ Photometry and Parallax Data”, The Publications of the Astronomical Society of the Pacific, Volume 132, Issue 1013, id.074203
Topasna, G. A., Jones R., Kaltcheva, N., 2020, “Interstellar Polarization and Extinction toward the Open Cluster NGC 6530”, The Publications of the Astronomical Society of the Pacific, Volume 132, Issue 1010, id.044301
Bernhard, K., Otero, S., Hümmerich, S., Kaltcheva, N., Paunzen, E., Bohlsen, T., 2018, “ An investigation of the photometric variability of confirmed and candidate Galactic Be stars using ASAS-3 data”, Monthly Notices of the Royal Astronomical Society, Volume 479, Issue 3, p.2909-2967; DOI:10.1093/mnras/sty1320
Kaltcheva N., Pritzl B., 2018, “Using stellar spectra to illustrate thermal radiation laws”, Phys. Educ. 53 035022
Topasna, G. A., Kaltcheva, N. T., Paunzen, E., 2018, “Interstellar Polarization and Extinction towards the Open Cluster NGC 1502”, Astronomy and Astrophysics, Volume 615, id.A166, 16 pp., DOI:10.1051/0004-6361/201731903
Kaltcheva, N., Golev, V., Paunzen, E., 2017, “Photometric Strömgren-Hβ Quantification for O and B Stars of Luminosity Class V”, Publications of the Astronomical Society of Pacific, Volume 129, Issue 981, pp. 114201, DOI:10.1088/1538-3873/aa8cbd
Topasna, G. A., Daman, E. A., Kaltcheva, N. T., 2017, “Interstellar Polarization and Extinction towards the Open Cluster NGC 457”, The Publications of the Astronomical Society of Pacific, Volume 129, Issue 980, pp. 104201, DOI: 10.1088/1538-3873/aa7f6c
Kaltcheva, N., Golev, V., Moran*, K. , 2014, “Massive Stellar Content of the Galactic Supershell GSH 305+01-24”, Astronomy and Astrophysics, 562A, 69K
Kaltcheva, N., Fabbri, V.*, Conard, T.*, Golev, V., 2013, "Cepheus Star-Forming Field Revisited", International Journal of Astronomy and Astrophysics, vol. 3, 472-479
Beaver, J., D., Kaltcheva, N., Briley, M., Piehl*, D., 2013, “Strömgren-Hβ photometry of the galactic cluster NGC 6705 (M11)”, The Publications of the Astronomical Society of the Pacific, vol. 125, No. 934, pp. 1412-1420
Kaltcheva, N., Moran*, K., Gehrman*, T., Golev, V. , 2013, "Homogeneous Distances to Several Stellar Groups in the Second Galactic Quadrant", International Journal of Astronomy and Astrophysics, vol. 3, 10-17.
Kaltcheva, N. & Golev, V., 2012, “Galactic Structure toward the Carina Tangent”, The Publications of the Astronomical Society of the Pacific, Vol. 124, No 912, pp. 128-139
Piehl, D., Briley, M. & Kaltcheva, N., 2011, “Strömgren-Hb photometry of stars in dark clouds”, Astronomische Nachrichten, Vol.332, Issue 2, p.159
Kaltcheva, N. & Scorcio, M., 2010, “The Carina Spiral Feature: Strömgren-Hb photometry approach. II. Precise photometric distances and reddening”, Astronomy and Astrophysics, 514, A59
Kaltcheva, N. , Kuchera, A. & Hathaway, C., 2010, “A uvbyβ photometric analysis of the Monoceros star-forming field”, Astronomische Nachrichten, Vol.331, Issue 4, p.384
Kaltcheva, N., 2009, “Strömgren-Hb photometry photometry of O and B stars in Norma”, The Publications of the Astronomical Society of the Pacific, Volume 121, Issue 886, pp. 1326-1333
Kaltcheva, N., 2009, “Lacerta OB1 revisited”, The Publications of the Astronomical Society of the Pacific, Volume 121, Issue 884, pp. 1045-1053
Kaltcheva, N. & Makarov V., 2007, “The structure and the distance of Cr121 from Hipparcos and photometry: resolving the discrepancy”, Astrophysical Journal, 667L, 155
Benko A., Prince M. J., Prince B. J., Kaltcheva N. T., Geissinger P., Schwabacher A. W., 2006, “Chemically Stable Films for Combinatorial Fluoresensor Arrays”, Journal for Combinational Chemistry, 8(2), 221
Kaltcheva, N., Jaeger, S., Kaba Bah, M. & Briley, M. M., 2005, “The Field of IC 2602: Strömgren-Hb photometry approach”, Astronomische Nachrichten , 326, 738
Kaltcheva N., 2003, “The Carina Spiral Feature: Strömgren-Hb photometry photometry approach. I. The photometric database", Astronomy and Astrophysics, 410, 523
Kaltcheva N., Knude J. & Georgiev V., 2003, “Interrelations between Vilnius and Strömgren photometric systems: the luminosity indicator v-X”, Astronomy and Astrophysics, 407, 377
Kaltcheva N. & Knude J., 2002, “Transformations between Vilnius and Strömgren photometric systems", Astronomy and Astrophysics, 385, 1107
Knude J. & Kaltcheva N., 2002, “Transformations between Vilnius and Strömgren-Hb photometric systems”, Astronomy and Space Science, 280, 67-70
Kaltcheva N., Gredel R. & Fabricius C., 2001, ``The association surrounding NGC 2439'', Astronomy and Astrophysics, 372, 95
Kaltcheva N., 2000, “The region of Collinder 121”, Monthly Notices of the Royal Astronomical Society, 318, 1023
Kaltcheva N., Olsen E. H.& Clausen J. V., 1999, “Strömgren-Hb photometry of O and B type stars in star-forming regions. II. Monoceros OB2, Canis Major OB1 and Collinder 121”, Astronomy and Astrophysics, 352, 605
Kaltcheva N. & Olsen E. H., 1999, “Strömgren-Hb photometry of O and B type stars in star-forming regions. I. Canis Major - Puppis – Vela”, Astronomy and Astrophysics, 352, 600
Kaltcheva N. & Knude J., 1998, “A test of B-type star Strömgren-Hb photometric distances via the Hipparcos parallaxes”, Astronomy and Astrophysics, 337, 178
Kaltcheva N., 1998, “Strömgren-Hb photometry of OB stars in the region of the Carina Spiral Feature", Astronomy and Astrophysics Supplement Series, 128, 309
Kunchev P. & Kaltcheva N., 1997, “New massive star cluster candidates in M33 galaxy”, Astrophysics & Space Science, 253, 301
