Navigation überspringen
Universitätsbibliothek Heidelberg
Status: Bibliographieeintrag

Verfügbarkeit
Standort: ---
Exemplare: ---
heiBIB
 Online-Ressource
Verfasst von:Lara-López, Maritza A. [VerfasserIn]   i
 Zinchenko, Igor A. [VerfasserIn]   i
 Pilyugin, Leonid S. [VerfasserIn]   i
 Gunawardhana, Madusha L. P. [VerfasserIn]   i
 López-Cruz, Omar [VerfasserIn]   i
 Sullivan, Shane P. O' [VerfasserIn]   i
 Feltre, Anna [VerfasserIn]   i
 Rosado, Margarita [VerfasserIn]   i
 Sánchez-Cruces, Mónica [VerfasserIn]   i
 Chevallard, Jacopo [VerfasserIn]   i
 Rossi, Maria Emilia De [VerfasserIn]   i
 Dib, Sami [VerfasserIn]   i
 Fritz, Jacopo [VerfasserIn]   i
 Fuentes-Carrera, Isaura [VerfasserIn]   i
 Garduño, Luis E. [VerfasserIn]   i
 Ibar, Eduardo [VerfasserIn]   i
Titel:Metal-THINGS
Titelzusatz:on the metallicity and ionization of ULX sources in NGC 925
Verf.angabe:Maritza A. Lara-López, Igor A. Zinchenko, Leonid S. Pilyugin, Madusha L.P. Gunawardhana, Omar López-Cruz, Shane P. O' Sullivan, Anna Feltre, Margarita Rosado, Mónica Sánchez-Cruces, Jacopo Chevallard, Maria Emilia De Rossi, Sami Dib, Jacopo Fritz, Isaura Fuentes-Carrera, Luis E. Garduño, and Eduardo Ibar
E-Jahr:2021
Jahr:2021 January 5
Umfang:11 S.
Fussnoten:Gesehen am 12.02.2021
Titel Quelle:Enthalten in: The astrophysical journal / 1
Ort Quelle:London : Institute of Physics Publ., 1996
Jahr Quelle:2021
Band/Heft Quelle:906(2021,1) Artikel-Nummer 42, 11 Seiten
ISSN Quelle:1538-4357
Abstract:We present an analysis of the optical properties of three Ultra Luminous X-ray (ULX) sources identified in NGC 925. We use Integral field unit data from the George Mitchel spectrograph in the context of the Metal-THINGS survey. The optical properties for ULX-1 and ULX-3 are presented, while the spaxel associated with ULX-2 had a low S/N, which prevented its analysis. We also report the kinematics and dimensions of the optical nebula associated with each ULX using ancillary data from the PUMA Fabry-Perot spectrograph. A BPT analysis demonstrates that most spaxels in NGC 925 are dominated by star-forming regions, including those associated with ULX-1 and ULX-3. Using the resolved gas-phase metallicities, a negative metallicity gradient is found, consistent with previous results for spiral galaxies, while the ionization parameter tends to increase radially throughout the galaxy. Interestingly, ULX-1 shows a very low gas metallicity for its galactocentric distance, identified by two independent methods, while exhibiting a typical ionization. We find that such low gas metallicity is best explained in the context of the high-mass X-ray binary population, where the low-metallicity environment favors active Roche lobe overflows that can drive much higher accretion rates. An alternative scenario invoking accretion of a low-mass galaxy is not supported by the data in this region. Finally, ULX-3 shows both a high metallicity and ionization parameter, which is consistent with the progenitor being a highly accreting neutron star within an evolved stellar population region.
DOI:doi:10.3847/1538-4357/abc892
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://doi.org/10.3847/1538-4357/abc892
 DOI: https://doi.org/10.3847/1538-4357/abc892
Datenträger:Online-Ressource
Sprache:eng
K10plus-PPN:1748144677
Verknüpfungen:→ Zeitschrift

Permanenter Link auf diesen Titel (bookmarkfähig):  https://katalog.ub.uni-heidelberg.de/titel/68698556   QR-Code
zum Seitenanfang