Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Nazim Aksaker"'
Autor:
Y. Solovyeva, Senay Avdan, M. Ozdogan Ela, K. Atapin, I. Akkaya Oralhan, D. V. Bizyaev, Alexander Vinokurov, Aysun Akyüz, Sinan Allak, Nazim Aksaker
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 505:771-782
We present the results of a search for optical candidates of Ultraluminous X-ray sources (ULXs) in two dwarf galaxies: NGC 4861 and NGC 4449 using Hubble Space Telescope {\it HST} archival data. With a precise astrometry, we confirm that NGC 4861 X1
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 499:5682-5689
In this study, we report identification of a new ultraluminous X-ray source (ULX) named as X-7 in NGC 1316, with an unabsorbed luminosity of 2.1$\times$10$^{39}$ erg s$^{-1}$ using the two recent Chandra archival observations. The X-7 was detected in
Autor:
Atila Poro, Ehsan Paki, Mark G. Blackford, Fatemeh Davoudi, Yasemin Aladag, Shiva Zamanpour, Soroush Sarabi, Afshin Halavati, Nazim Aksaker, Halil Bagis, Jabar Rahimi, Hamidreza Guilani, Aysun Akyuz, Faezeh Jahediparizi, Ozge Doner, Zohreh Ashrafzadeh
We present the photometric analysis of six short-period systems (EI Oct, V336 TrA, NX Boo, V356 Boo, PS Boo, and V2282 Cyg). This is the first photometric analysis of these systems except for V336 TrA. Observations were conducted for 27 nights at thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8e1f6bfa9d985ba4c712b2115a00106
Publikováno v:
Astrophysics and Space Science. 366
Artificial Light pollution (AL) in Turkey and in Turkish observatories between 2012--2020 have been studied using the archival data of Visible Infrared Imaging Radiometer Suite (VIIRS) instrument. The astroGIS database has been used in processing the
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 488:5935-5940
We present the results of a search for optical counterparts of ultraluminous X-ray source (ULX) X-1 in the nearby galaxy NGC 2500 by using archival images taken with the Hubble Space Telescope ({\it HST}) Wide Field Camera (WFC3)/UVIS. Four optical s
Publikováno v:
Astrophysics and Space Science. 365
In this study, we investigate the effects of light pollution in France using GIS data which was first used in Aksaker et al. (Mon. Not. R. Astron. Soc. 493:1204, 2020) (so called astroGIS database - astrogis.org). A subset of Artificial Light layer o
Autor:
Filiz Kahraman Alicavus, A. Boudesh, M. Tekes, A. Sojoudizadeh, Arif Solmaz, Özgür Baştürk, Somayeh Khakpash, Nazim Aksaker, Ekrem Murat Esmer, Jabar Rahimi, S. Modarres, Fatemeh Davoudi, Y. Aladağ, M. Ghanbarzadehchaleshtori, Aysun Akyüz, E. Lashgari, Atila Poro
The first analysis of the photometric observation in BVR filters of a W UMa type binary system BQ Ari was performed. Light curve analysis was performed using Wilson-Devinney (W-D) code combined with a Monte Carlo (MC) simulation to determine its phot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e0f38a33373a6b993f38af0c03741d9
http://arxiv.org/abs/2006.00528
http://arxiv.org/abs/2006.00528
Autor:
Samaneh Rezaei, Atila Poro, Arif Solmaz, Maryam Hashemi, Nazim Aksaker, Y. Aladağ, Shiva Zamanpour
Publikováno v:
New Astronomy. 86:101571
We present new BVR band photometric light curves of BO Aries obtained in 2020 and combined them with the Transiting Exoplanet Survey Satellite (TESS) light curves. We obtained times of minima based on Gaussian and Cauchy distributions and then applie
Autor:
Nazim Aksaker, Sergei Fabrika, A. F. Valeev, Senay Avdan, Hasan Avdan, Aysun Akyüz, Solen Balman, Alexander Vinokurov, Inci Akkaya-Oralhan
We report the identification of the possible optical counterparts of five out of seven Ultraluminous X-ray Sources (ULXs) in NGC 4490/4485 galaxy pair. Using archival Hubble Space Telescope ({\it HST}) imaging data, we identified a single optical can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01500b52e6bb575d59b92f3622893376
http://arxiv.org/abs/1903.05188
http://arxiv.org/abs/1903.05188
Autor:
M. Bayazit, Zohre Kurt, Kazım Kaba, Nazim Aksaker, Mehmet Akif Erdoğan, Cahit Yeşilyaprak, Sinan Kaan Yerli
A global site selection for astronomy was performed with 1 km spatial resolution ($\sim$ 1 Giga pixel in size) using long term and up-to-date datasets to classify the entire terrestrial surface on the Earth. Satellite instruments are used to get the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c21b789543328f0c7fe1af427ae87af