20 citations
- A. Alikhanyan National LaboratoryAM63 papers
- AGH University of KrakowPL63 papers
- American University of the Middle EastKW63 papers
- Baylor UniversityUS63 papers
- Beihang UniversityCN63 papers
- Benemérita Universidad Autónoma de PueblaMX63 papers
- Boğaziçi UniversityTR63 papers
- Brown UniversityUS63 papers
- Brunel University of LondonGB63 papers
- Bulgarian Academy of SciencesBG63 papers
- California Institute of TechnologyUS63 papers
- Carnegie Mellon UniversityUS63 papers
Showing astro-ph.HEShow all
2 papers · 1 filter
astro-ph.HE2026
A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2
Sinan Allak, Lorenzo Ducci, Valery F. Suleimanov +6
In this Letter, we report the detection of an absorption-like feature at ~1.89 keV in Chandra/ACIS spectra of the ultraluminous X-ray source NGC 4861 X-2, based on the deepest obse…
astro-ph.HE2026★ 1 cited
Identification of three new ultraluminous X-ray sources in NGC 4631 and NGC 1097: Evidence for stellar-mass black holes
Sinan Allak, Aysun Akyuz, Yasemin Aladag +2
Recent observations of galaxies continue to reveal new ultraluminous X-ray sources (ULXs), increasing their known population and improving the statistics needed to understand their…