Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Prestwich, Andrea"'
Autor:
Kaaret, Philip, Prestwich, Andrea
Luminous, compact emission-line galaxies (LCGs) are the most abundant class of confirmed Lyman continuum (LyC) emitters. An optical integral field study of the nearby LCG NGC 2366 reveals an outflow originating at the star cluster 'knot B' thought to
Externí odkaz:
http://arxiv.org/abs/2405.13192
Autor:
West, Lacey, Garofali, Kristen, Lehmer, Bret D., Prestwich, Andrea, Eufrasio, Rafael, Luangtip, Wasutep, Roberts, Timothy P., Zezas, Andreas
Luminous infrared galaxies (LIRGs), the most extreme star-forming galaxies in the nearby (D$<$30 Mpc) Universe, show a notable X-ray emission deficiency (up to a factor of $\sim$10) compared with predictions from scaling relations of galaxy-wide high
Externí odkaz:
http://arxiv.org/abs/2305.19491
We characterize the optical counterparts to the compact X-ray source population within the nearby spiral galaxy M81 using multi-band Hubble Space Telescope (HST) imaging data. By comparing the optical luminosities and colors measured for candidate do
Externí odkaz:
http://arxiv.org/abs/2206.07192
Autor:
Rice, Jared R., Rangelov, Blagoy, Prestwich, Andrea, Chandar, Rupali, Bichon, Luis, Boldt, Clint
We used archival data from the \emph{Chandra X-ray Observatory} (\emph{Chandra}) and the \emph{Hubble Space Telescope}, to identify 334 candidate X-ray binary (XRB) systems and their potential optical counterparts in the interacting galaxy pair NGC 5
Externí odkaz:
http://arxiv.org/abs/2109.02742
Lyman continuum and line emission are thought to be important agents in the reionization of the early universe. Haro 11 is a rare example of a local galaxy in which Ly$\alpha$ and continuum emission have escaped without being absorbed or scattered by
Externí odkaz:
http://arxiv.org/abs/2105.03504
Autor:
Hunt, Qiana, Gallo, Elena, Chandar, Rupali, Mulia, Paula Johns, Mok, Angus, Prestwich, Andrea, Liu, Shengchen
Building on recent work by Chandar et al. (2020), we construct X-ray luminosity functions (XLFs) for different classes of X-ray binary (XRB) donors in the nearby star-forming galaxy M83 through a novel methodology: rather than classifying low- vs. hi
Externí odkaz:
http://arxiv.org/abs/2102.07293
Autor:
Kouroumpatzakis, Konstantinos, Zezas, Andreas, Wolter, Anna, Fruscione, Antonella, Anastasopoulou, Konstantina, Prestwich, Andrea
We present a systematic study of the metallicity variations within the collisional ring galaxy NGC 922 based on long-slit optical spectroscopic observations. We find a metallicity difference between star-forming regions in the bulge and the ring, wit
Externí odkaz:
http://arxiv.org/abs/2010.11107
X-ray binaries may have helped reionize the early Universe by enabling Lyman continuum escape. We analyzed a set of 8 local galaxies that are potential Lyman leaking galaxies, identified by a blue color and weak emission lines, using Chandra X-ray ob
Externí odkaz:
http://arxiv.org/abs/1907.00225
Autor:
Lehmer, Bret D., Eufrasio, Rafael T., Tzanavaris, Panayiotis, Basu-Zych, Antara, Fragos, Tassos, Prestwich, Andrea, Yukita, Mihoko, Zezas, Andreas, Hornschemeier, Ann E., Ptak, Andrew
We present new Chandra constraints on the X-ray luminosity functions (XLFs) of X-ray binary (XRB) populations, and their scaling relations, for a sample of 38 nearby galaxies (D = 3.4-29 Mpc). Our galaxy sample is drawn primarily from the Spitzer inf
Externí odkaz:
http://arxiv.org/abs/1905.05197
Autor:
Laycock, Silas G. T., Christodoulou, Dimitris M., Williams, Benjamin F., Binder, Breanna, Prestwich, Andrea
In young starburst galaxies, the X-ray population is expected to be dominated by the relics of the most massive and short-lived stars, black-hole and neutron-star high mass X-ray binaries (XRBs). In the closest such galaxy, IC 10, we have made a mult
Externí odkaz:
http://arxiv.org/abs/1701.03803