Matches in SemOpenAlex for { <https://semopenalex.org/work/W4313706596> ?p ?o ?g. }
- W4313706596 endingPage "5858" @default.
- W4313706596 startingPage "5848" @default.
- W4313706596 abstract "ABSTRACT Owing to their quiet evolutionary histories, nearby dwarf galaxies (stellar masses $M_star lesssim 3 times 10^9 , mathrm{M}_odot$) have the potential to teach us about the mechanism(s) that ‘seeded’ the growth of supermassive black holes, and also how the first stellar mass black holes formed and interacted with their environments. Here, we present high spatial resolution observations of three dwarf galaxies in the X-ray (Chandra), the optical/near-infrared (Hubble Space Telescope), and the radio (Karl G. Jansky Very Large Array). These three galaxies were previously identified as hosting candidate active galactic nuclei on the basis of lower resolution X-ray imaging. With our new observations, we find that X-ray sources in two galaxies (SDSS J121326.01+543631.6 and SDSS J122111.29+173819.1) are off-nuclear and lack corresponding radio emission, implying they are likely luminous X-ray binaries. The third galaxy (Mrk 1434) contains two X-ray sources (each with LX ≈ 1040 erg s−1) separated by 2.8 arcsec, has a low metallicity [12 + log(O/H) = 7.8], and emits nebular He ii λ4686 line emission. The northern source has spatially coincident point-like radio emission at 9.0 GHz and extended radio emission at 5.5 GHz. We discuss X-ray binary interpretations (where an ultraluminous X-ray source blows a ‘radio bubble’) and active galactic nucleus interpretations (where an $approx 4times 10^5 , mathrm{M}_odot$ black hole launches a jet). In either case, we find that the He ii emission cannot be photoionized by the X-ray source, unless the source was ≈30–90 times more luminous several hundred years ago." @default.
- W4313706596 created "2023-01-08" @default.
- W4313706596 creator A5007600508 @default.
- W4313706596 creator A5012834053 @default.
- W4313706596 creator A5016462445 @default.
- W4313706596 creator A5018260797 @default.
- W4313706596 creator A5039488415 @default.
- W4313706596 creator A5039811932 @default.
- W4313706596 creator A5043531190 @default.
- W4313706596 creator A5049500446 @default.
- W4313706596 creator A5055363722 @default.
- W4313706596 creator A5058320763 @default.
- W4313706596 creator A5075858737 @default.
- W4313706596 creator A5080144350 @default.
- W4313706596 creator A5089396634 @default.
- W4313706596 date "2023-01-05" @default.
- W4313706596 modified "2023-10-01" @default.
- W4313706596 title "Multiwavelength scrutiny of X-ray sources in dwarf galaxies: ULXs versus AGNs" @default.
- W4313706596 cites W1485073943 @default.
- W4313706596 cites W165507508 @default.
- W4313706596 cites W1866498070 @default.
- W4313706596 cites W1908294504 @default.
- W4313706596 cites W1950554977 @default.
- W4313706596 cites W1968828892 @default.
- W4313706596 cites W1970061920 @default.
- W4313706596 cites W1974213941 @default.
- W4313706596 cites W1986110531 @default.
- W4313706596 cites W1987319691 @default.
- W4313706596 cites W1994702306 @default.
- W4313706596 cites W2002254708 @default.
- W4313706596 cites W2026886373 @default.
- W4313706596 cites W2035538729 @default.
- W4313706596 cites W2037140983 @default.
- W4313706596 cites W2046303393 @default.
- W4313706596 cites W2050276909 @default.
- W4313706596 cites W2051564892 @default.
- W4313706596 cites W2052923345 @default.
- W4313706596 cites W2052926897 @default.
- W4313706596 cites W2062713883 @default.
- W4313706596 cites W2063592995 @default.
- W4313706596 cites W2071457590 @default.
- W4313706596 cites W2075974992 @default.
- W4313706596 cites W2076299157 @default.
- W4313706596 cites W2088668851 @default.
- W4313706596 cites W2089290597 @default.
- W4313706596 cites W2089390834 @default.
- W4313706596 cites W2096568520 @default.
- W4313706596 cites W2107051429 @default.
- W4313706596 cites W2112028701 @default.
- W4313706596 cites W2123267088 @default.
- W4313706596 cites W2130592261 @default.
- W4313706596 cites W2131552906 @default.
- W4313706596 cites W2135625048 @default.
- W4313706596 cites W2146026248 @default.
- W4313706596 cites W2157117897 @default.
- W4313706596 cites W2157917411 @default.
- W4313706596 cites W2165265292 @default.
- W4313706596 cites W2176245720 @default.
- W4313706596 cites W2218767058 @default.
- W4313706596 cites W2258329503 @default.
- W4313706596 cites W2295922781 @default.
- W4313706596 cites W2583989397 @default.
- W4313706596 cites W2766898368 @default.
- W4313706596 cites W2777783669 @default.
- W4313706596 cites W2785495831 @default.
- W4313706596 cites W2798336535 @default.
- W4313706596 cites W2807600565 @default.
- W4313706596 cites W2888532099 @default.
- W4313706596 cites W2892030559 @default.
- W4313706596 cites W2896002318 @default.
- W4313706596 cites W2909005732 @default.
- W4313706596 cites W2909553146 @default.
- W4313706596 cites W2914889762 @default.
- W4313706596 cites W2951323278 @default.
- W4313706596 cites W2951636983 @default.
- W4313706596 cites W2953698392 @default.
- W4313706596 cites W2971875777 @default.
- W4313706596 cites W2975997054 @default.
- W4313706596 cites W2981785229 @default.
- W4313706596 cites W2984423540 @default.
- W4313706596 cites W3000662531 @default.
- W4313706596 cites W3003869839 @default.
- W4313706596 cites W3034831479 @default.
- W4313706596 cites W3039181188 @default.
- W4313706596 cites W3043441960 @default.
- W4313706596 cites W3098411012 @default.
- W4313706596 cites W3098589636 @default.
- W4313706596 cites W3099268157 @default.
- W4313706596 cites W3099401213 @default.
- W4313706596 cites W3099789972 @default.
- W4313706596 cites W3099901757 @default.
- W4313706596 cites W3099941437 @default.
- W4313706596 cites W3100071390 @default.
- W4313706596 cites W3100252292 @default.
- W4313706596 cites W3100264713 @default.
- W4313706596 cites W3100328157 @default.
- W4313706596 cites W3101164046 @default.
- W4313706596 cites W3101575281 @default.