Publications & Works

Publication Network

Published journal articles indexed by SCI, SSCI, and AHCI

An investigation of open clusters Berkeley 68 and Stock 20 using CCD UBV and Gaia DR3 data

Yontan T.
ASTRONOMICAL JOURNAL, vol.00, pp.1-24, 2022 (SCI-Expanded) Creative Commons License identifier

A Study of the NGC 1193 and NGC 1798 Open Clusters Using CCD UBV Photometric and Gaia EDR3 Data

Yontan T., Çakmak H., Bilir S., Banks ., Raul M., Canbay R., et al.
REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA, vol.58, no.2, pp.333-353, 2022 (SCI-Expanded)

A Photometric and Astrometric Study of the Open Clusters NGC 1664 and NGC 6939

Koç S., Yontan T., Bilir S., Canbay R., Ak T., Banks T., et al.
ASTRONOMICAL JOURNAL, vol.163, no.4, 2022 (SCI-Expanded) identifier identifier

A study of the Czernik 2 and NGC 7654 open clusters using CCD UBV photometric and Gaia EDR3 data

Akbulut B., Ak S., Yontan T., Bilir S., Ak T., Banks T., et al.
Astrophysics and Space Science, vol.366, no.7, 2021 (SCI-Expanded) Creative Commons License identifier identifier

A study of open clusters Frolov 1 and NGC 7510 using CCD UBV photometry and Gaia DR2 astrometry

Yontan T., Bilir S., Ak T., Akbulut B., Canbay R., Banks T., et al.
ASTRONOMISCHE NACHRICHTEN, vol.342, no.3, pp.538-552, 2021 (SCI-Expanded) identifier identifier identifier

Vilnius photometry and Gaia astrometry of Melotte 105

Banks T., Yontan T., Bilir S., Canbay R.
JOURNAL OF ASTROPHYSICS AND ASTRONOMY, vol.41, 2020 (SCI-Expanded) identifier identifier

Bridging the ultraviolet and optical regions: Transformation equations between GALEX and UBV photometric systems

Bilir S., Alan N., Guctekin S. T., Celebi M., Yontan T., Plevne O., et al.
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA, vol.37, 2020 (SCI-Expanded) identifier identifier identifier

Metallicity and absolute magnitude calibrations for F-G type main-sequence stars in the Gaia era

Çelebi M., Bilir S., Ak S., Ak T., Bostanci Z. F., Yontan T.
ASTROPHYSICS AND SPACE SCIENCE, vol.364, no.10, 2019 (SCI-Expanded) identifier identifier

CCD UBV photometric and Gaia astrometric study of eight open clusters-ASCC 115, Collinder 421, NGC 6793, NGC 7031, NGC 7039, NGC 7086, Roslund 1 and Stock 21

Yontan T., Bilir S., Bostanci Z. F., Ak T., Ak S., Güver T., et al.
ASTROPHYSICS AND SPACE SCIENCE, vol.364, no.9, 2019 (SCI-Expanded) identifier identifier

Analysis of a detached eclipsing binary at near the turnoff point of the open cluster NGC 6791 in Kepler field

Hoyman B., ÖZDARCAN O., Dervisoglu A., Yontan T., ÇAKIRLI Ö.
NEW ASTRONOMY, vol.68, pp.10-19, 2019 (SCI-Expanded) identifier identifier

CCD UBV photometric study of five open clusters-Dolidze 36, NGC 6728, NGC 6800, NGC 7209, and Platais 1

Bostanci Z. F., Yontan T., Bilir S., Ak T., Guver T., Ak S., et al.
ASTROPHYSICS AND SPACE SCIENCE, vol.363, no.7, 2018 (SCI-Expanded) identifier identifier

CCD UBV photometry and kinematics of the open cluster NGC 225

Bilir S., Bostanci Z. F., Yontan T., Güver T., Bakış V., Ak T., et al.
ADVANCES IN SPACE RESEARCH, vol.58, no.9, pp.1900-1914, 2016 (SCI-Expanded) identifier identifier

CCD UBV photometry of the open cluster NGC 6819

Ak T., Bostanci Z. F., Yontan T., Bilir S., Güver T., Ak S., et al.
ASTROPHYSICS AND SPACE SCIENCE, vol.361, 2016 (SCI-Expanded) identifier identifier

A comprehensive study of the open cluster NGC 6866

Bostanci Z. F., Ak T., Yontan T., Bilir S., Guver T., Ak S., et al.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol.453, no.1, pp.1095-1107, 2015 (SCI-Expanded) identifier identifier

CCD UBVRI photometry of NGC 6811

Yontan T., Bilir S., Bostanci Z. F., Ak T., Karaali S., Guver T., et al.
ASTROPHYSICS AND SPACE SCIENCE, vol.355, pp.267-281, 2015 (SCI-Expanded) identifier identifier

The early-type near-contact binary system V337 Aql revisited

Tüysüz M., Soydugan F., Bilir S., Soydugan E., Senyuz T., Yontan T.
NEW ASTRONOMY, vol.28, pp.44-48, 2014 (SCI-Expanded) identifier identifier

Colour Transformations between BVRc and g ' r ' i ' Photometric Systems for Giant Stars

Ak S., Ak T., Karaali S., Bilir S., Guctekin S. T., Taş O., et al.
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA, vol.31, 2014 (SCI-Expanded) Sustainable Development identifier identifier

Research performance of Turkish astronomers in the period of 1980-2010

Bilir S., Gogus E., Onal O., Ozturkmen N. D., Yontan T.
SCIENTOMETRICS, vol.97, pp.477-489, 2013 (SCI-Expanded) identifier identifier

A new absolute magnitude calibration for red clump stars

Bilir S., Ak T., Ak S., Yontan T., Bostanci Z. F.
NEW ASTRONOMY, pp.88-97, 2013 (SCI-Expanded) identifier identifier

Local stellar kinematics from RAVE data - III. Radial and vertical metallicity gradients based on red clump stars

Bilir S., Karaali S., Ak S., Onal O., Dagtekin N. D., Yontan T., et al.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol.421, pp.3362-3374, 2012 (SCI-Expanded) identifier identifier

Articles Published in Other Journals

A new ranking scheme for the institutional scientific performance

Bilir S., Göğüş E., Tas Ö., Yontan T.
JOURNAL OF SCIENTOMETRIC RESEARCH, vol.4, no.2, pp.70-76, 2015 (ESCI) identifier

Refereed Congress / Symposium Publications in Proceedings

NGC 1664 ve NGC 6939 Açık Kümelerinin Fotometrik ve Astrometrik İncelenmesi

Koç S., Yontan T.
22. Ulusal Astronomi Kongresi, İzmir, Turkey, 6 - 08 September 2022, pp.1-5

Berkeley 68 ve Stock 20 Açık Kümelerinin Yer ve Uzay Tabanlı Teleskop Verileriyle İncelenmesi

Yontan T.
22. Ulusal Astronomi Kongresi, İzmir, Turkey, 6 - 08 September 2022, pp.1-6

Türkiye’de 1980-2020 Yılları Arası Yapılan Astronomi ve Astrofizik Araştırmalarının Uluslararası Çıktıları

Yontan T., Göğüş E., Bilir S., Dursun D. C., Tanık Öztürk B., Canbay R., et al.
22. Ulusal Astronomi Kongresi, İzmir, Turkey, 6 - 08 September 2022, pp.1-5 Sustainable Development

NGC 1193 ve NGC 1798 Açık Kümelerinin CCD UBV ve Gaia Analizleri

Taşdemir S., Yontan T., Bilir S.
22. Ulusal Astronomi Kongresi, İzmir, Turkey, 6 - 08 September 2022, pp.1-5

Güneş Civarındaki Metalce Fakir Yıldızların SED Yöntemiyle Temel Astrofizik Parametrelerinin Tayini

Dursun D. C., Bilir S., Şahin T., Yontan T., Plevne O.
22. Ulusal Astronomi Kongresi, İzmir, Turkey, 6 - 08 September 2022, pp.1-5

Transformation Equations Between GALEX and UBV Photometric Systems

Alan N., Bilir S., Tunçel Güçtekin S., Çelebi M., Yontan T., Plevne O., et al.
Galaktik Astronomi Çalıştayı (Galactic Astronomy Workshop), İstanbul, Turkey, 12 - 13 September 2019, vol.1, pp.211-215

Metalicity and Absolute Magnitude Calibrations for F-G Type Main-Sequence Stars

Çelebi M., Bilir S., Ak S., Ak T., Bostancı Güver Z. F., Yontan T.
Galaktik Astronomi Çalıştayı (Galactic Astronomy Workshop), İstanbul, Turkey, 12 - 13 September 2019, vol.1, pp.167-170

CCD UBV Photometric and Gaia Astrometric Study of Eight Open Clusters – ASCC 115, COLLINDER 421, NGC 6793, NGC 7031, NGC 7039, NGC 7086, ROSLUND 1 ve STOCK 21

Yontan T., Bilir S., Bostancı Güver Z. F., Ak T., Ak S., Güver T., et al.
Galaktik Astronomi Çalıştayı (Galactic Astronomy Workshop), İstanbul, Turkey, 12 - 13 September 2019, vol.1, pp.197-200 Sustainable Development

Photometric and Astrometric Analysis of Four Southern Open Clusters: NGC 3293, NGC 3766, NGC 4755, NGC 6231

Akti A. B., Bostancı Güver Z. F., Yontan T., Bilir S., Ak T., Ak S., et al.
Galaktik Astronomi Çalıştayı (Galactic Astronomy Workshop), İstanbul, Turkey, 12 - 13 September 2019, vol.1, pp.207-210

Transformation equations between GALEX and UBV photometric systems

Alan N., Bilir S., Güçtekin S. T., Çelebi M., Yontan T., Plevne O., et al.
Turkish Physical Society 35th International Physics Congress, TPS 2019, Konacik-Bodrum, Turkey, 4 - 08 September 2019, vol.2178 Creative Commons License identifier identifier

An Overview of Astronomy Studies in Turkey and a New Approach to the Scientific Performance Evaluation of Institutions

Bilir S., Göğüş E., Önal Taş Ö., Yontan T.
19. Ulusal Astronomi Kongresi (19th National Astronomy Congress), Ankara, Turkey, 2 - 06 February 2015, vol.1, no.1, pp.321-325 Creative Commons License

A Comprehensive Study of the Open Custer NGC 6866

Bostancı Z. F., Ak T., Yontan T., Bilir S., Çakırlı Ö., Güver T., et al.
19. Ulusal Astronomi Kongresi (19th National Astronomy Congress), Ankara, Turkey, 2 - 06 February 2015, vol.1, no.1, pp.243-246 Creative Commons License

Kinematic and Dynamic Properties of Binary Stars: Angular Momentum and Orbital Period Evolution

Soydugan F., Bilir S., Soydugan E., Demircan O., Eker Z., Tüysüz M., et al.
19. Ulusal Astronomi Kongresi (19th National Astronomy Congress), Ankara, Turkey, 2 - 06 February 2015, vol.1, no.1, pp.9-12 Creative Commons License

Photometric Study of NGC 6811 Open Cluster

Yontan T., Bilir S., Bostancı Z. F., Ak T., Karaali S., Güver T., et al.
19. Ulusal Astronomi Kongresi (19th National Astronomy Congress), Ankara, Turkey, 2 - 06 February 2015, vol.1, no.1, pp.233-236 Creative Commons License

CCD UBVRI Photometric Observations of NGC 225 Open Cluster

Bostancı Güver F., Ak T., Güver T., Bilir S., Ak S., Yontan T., et al.
Türkiye’deki Teleskoplarla Bilim Sempozyumu (Science with Telescopes in Turkey), İstanbul, Turkey, 1 - 04 December 2013, vol.1, pp.192-196

Astronomy Studies in Turkey in the Period of 1980-2010

Bilir S., Gogus E., Önal Taş Ö., Öztürkmen N. D., Yontan T.
Türkiye’deki Teleskoplarla Bilim Sempozyumu (Science with Telescopes in Turkey), İstanbul, Turkey, 14 - 15 May 2012, vol.1, pp.148-160

Other Publications

Samanyolu'nun Kalbi

Bilir S., Yontan T., Önal Taş Ö.
Other, pp.26-33, 2011