Publications & Works

Publication Network
Articles 31
All (31)
SCI-E, SSCI, AHCI (26)
SCI-E, SSCI, AHCI, ESCI (27)
ESCI (1)
Scopus (27)
TRDizin (2)
Other Publications (2)

1. A Multidata Approach to Open Clusters: Roslund 3 and Ruprecht 174 in CCD UBV and Gaia DR3 Context

Karagöz H., Yontan T., Bilir S., Plevne O., Ak T., Ak S., et al.
Astronomical Journal , vol.170, no.3, 2025 (SCI-Expanded, Scopus) identifier identifier

2. A Comprehensive Study of Czernik 41 and NGC 1342 Using CCD UBV and Gaia DR3 Data

TANIK ÖZTÜRK B., BİLİR S., YONTAN T., PLEVNE O., AK T., AK S., et al.
ASTRONOMICAL JOURNAL , vol.170, no.3, 2025 (SCI-Expanded) identifier identifier

3. Photometric and Kinematic Studies of Open Clusters Ruprecht 1 and Ruprecht 171

ÇAKMAK H., YONTAN T., BİLİR S., Banks T. S., Michel R., SOYDUGAN E., et al.
ASTRONOMISCHE NACHRICHTEN , vol.345, no.8, 2024 (SCI-Expanded, Scopus) identifier identifier

4. CCD UBV and Gaia DR3 Analyses of the Open Clusters King 6 and NGC 1605

Gokmen S., Eker Z., YONTAN T., BİLİR S., Tansel A. K., Serap A. K., et al.
ASTRONOMICAL JOURNAL , vol.166, no.6, 2023 (SCI-Expanded, Scopus) identifier identifier

5. Astrophysical Parameters of the Open Cluster NGC 2509

Yontan T., Koç S.
SAKARYA UNIVERSITY JOURNAL OF SCIENCE , vol.27, no.5, pp.1037-1046, 2023 (Peer-Reviewed Journal)

6. CCD UBV and Gaia DR3 based analysis of NGC 189, NGC 1758 and NGC 7762 open clusters

Yontan T., Bilir S., Çakmak H., Michel R., Banks T., Soydugan E., et al.
Advances in Space Research , vol.72, no.4, pp.1454-1473, 2023 (SCI-Expanded, Scopus) Creative Commons License identifier identifier

7. Analysis of the Young Open Cluster Trumpler 2 Using Gaia DR3 Data

Yontan T., Taşdemir S.
Physics and Astronomy Reports , vol.1, no.1, pp.1-10, 2023 (Peer-Reviewed Journal)

8. Astrophysical Parameters of the Open Cluster Berkeley 6

Koç S., Yontan T.
Bitlis Eren Üniversitesi Fen Bilimleri Dergisi , vol.12, no.2, pp.369-375, 2023 (Peer-Reviewed Journal)

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

Yontan T.
ASTRONOMICAL JOURNAL , vol.165, no.3, pp.1-24, 2022 (SCI-Expanded) Creative Commons License identifier

10. 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, Scopus) identifier identifier identifier

11. A STUDY OF THE NGC 1193 AND NGC 1798 OPEN CLUSTERS USING CCD UBV PHOTOMETRIC AND GAIA EDR3 DATA

YONTAN T., ÇAKMAK H., BİLİR S., Banks T., Raul M., Canbay R., et al.
REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA , vol.58, no.2, pp.333-353, 2022 (SCI-Expanded, Scopus) Sustainable Development identifier identifier identifier

12. 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, Scopus) Creative Commons License identifier identifier identifier

13. 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, Scopus) identifier identifier identifier

14. 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, Scopus) identifier identifier identifier

15. 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, Scopus) identifier identifier identifier

16. 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, Scopus) identifier identifier identifier

17. 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, Scopus) identifier identifier identifier

18. 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

19. 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, Scopus) identifier identifier identifier

20. 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, Scopus) identifier identifier identifier

21. 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, Scopus) identifier identifier identifier

22. 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, Scopus) identifier identifier identifier

23. 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, Scopus) identifier

24. 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, Scopus) identifier identifier identifier

25. 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, Scopus) identifier identifier identifier

26. 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, Scopus) Sustainable Development identifier identifier identifier

27. 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, SSCI, Scopus) identifier identifier

28. 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, Scopus) identifier identifier identifier

29. Luminosity-colour relations for red clump stars

Bilir S., Onal Ö., Karaali S., Cabrera-Lavers A., Cakmak H.
ASTROPHYSICS AND SPACE SCIENCE , no.2, pp.417-427, 2013 (SCI-Expanded, Scopus) Sustainable Development identifier identifier identifier

30. 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, Scopus) identifier identifier identifier

31. Samanyolu'nun Kalbi

Bilir S., Yontan T., Önal Taş Ö.
Popüler Bilim , no.211, pp.27-32, 2011 (Non Peer-Reviewed Journal)
Papers Presented at Peer-Reviewed Scientific Conferences 19

1. Seçilmis Açık Kümelerin Fotometrik ve Astrometrik Analizleri

Erçay H., Yontan T., Bilir S.
23. Ulusal Astronomi Kongresi, İstanbul, Turkey, 2 - 06 September 2024, vol.6, pp.399-406, (Full Text) Creative Commons License

2. ANALYSIS of UBC 83 OPEN CLUSTER with GAIA SATELLITE DATA

Yontan T.
I. INTERNATIONAL PARIS SCIENTIFIC RESEARCHES AND INNOVATION CONGRESS , Paris, France, 3 - 04 October 2024, pp.24-42, (Full Text)

3. SPACE-BASED ASTROMETRIC AND PHOTOMETRIC ANALYSIS OF THE LYGNA 2 OPEN CLUSTER

Yontan T.
3. BİLSEL INTERNATIONAL EFES SCIENTIFIC RESEARCHES AND INNOVATION CONGRESS, 22 March 2024, pp.270-279, (Full Text)

4. NGC 1664 ve NGC 6939 Açık Kümelerinin Fotometrik ve Astrometrik İncelenmesi

Koç S., Bilir S., Yontan T.
22. Ulusal Astronomi Kongresi 11. Ulusal Astronomi Öğrenci Kongresi, İzmir, Turkey, 6 - 08 September 2022, vol.4, no.3, pp.203-207, (Full Text) Creative Commons License

5. 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, (Full Text)

6. 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, (Full Text)

7. 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 11. Ulusal Astronomi Öğrenci Kongresi, İzmir, Turkey, 6 - 08 September 2022, vol.4, no.3, pp.273-277, (Full Text) Creative Commons License Sustainable Development

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

Taşdemir S., Yontan T., Bilir S.
22. Ulusal Astronomi Kongresi 11. Ulusal Astronomi Öğrenci Kongresi, İzmir, Turkey, 6 - 08 September 2022, vol.4, no.3, pp.245-249, (Full Text) Creative Commons License

9. 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 11. Ulusal Astronomi Öğrenci Kongresi, İzmir, Turkey, 6 - 08 September 2022, vol.4, no.3, pp.97-101, (Full Text) Creative Commons License

10. 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, (Full Text)

11. 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, (Full Text)

12. 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, (Full Text)

13. 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, (Full Text) Sustainable Development

14. 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, (Full Text) Creative Commons License identifier identifier

15. 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, (Full Text) Creative Commons License

16. 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, (Full Text) Creative Commons License

17. 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, (Full Text) Creative Commons License

18. 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, (Full Text) Creative Commons License

19. 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, (Full Text)
Other Publications 1

1. Samanyolu'nun Kalbi

Bilir S., Yontan T., Önal Taş Ö.
Other, pp.26-33, 2011
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304

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296

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11

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73

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3

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12

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3

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9
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