FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3104453637> ?p ?o ?g. }

• W3104453637 abstract "Context. Blue compact galaxies (BCG) are gas-rich, low-mass, small systems that form stars at unusually high rates. This makes them excellent laboratories for investigating the process of star-formation (SF) at galactic scales and the effects of massive stellar feedback on the interstellar (and intergalactic) medium. Aims. We analyzed the BCG Tololo 1937-423 using optical integral field spectroscopy to probe its morphology, stellar content, nebular excitation and ionization properties, and the kinematics of its warm ionized gas. Methods. Tololo 1937-423 was observed with the Visible Multi-Object Spectrograph at the Very Large Telescope. We took data in the wavelength range 4150–7400 A, covering a field of view of 27″× 27″ on the sky with a spatial sampling of 0.67. From these data we built maps in the continuum and brighter emission lines, diagnostic line ratio maps, and velocity dispersion fields. We also generated the integrated spectrum of the main H ii regions and young stellar clusters to determine reliable physical parameters and oxygen abundances. Results. We found that Tololo 1937-423 is currently undergoing an extended starburst. In the H α maps we identified nine major clumps, aligned mostly northeast-southwest, and stretching to galactocentric distances ≥2 kpc. The galaxy presents a single continuum peak that is not cospatial with any knot in emission lines, indicating at least two relatively recent episodes of SF. The inhomogeneous dust distribution reachs its maximum ( E ( B − V )~ 0.97) roughly at the position of the continuum peak. We found shocked regions in the galaxy outer regions and at the edges of the SF knots. The oxygen abundance, 12 + log(O/H) ~ 8.20 ± 0.1, is similar in all the SF regions, suggesting a chemically homogeneous ionized interstellar medium over spatial scales of several kpc. The ionized gas kinematics displays an overall regular rotation around a northwest-southeast axis, with a maximum velocity of 70 ± 7 km s -1 . Conclusions. The morphology of the galaxy and the two different episodes of SF suggest a scenario of triggered (induced by supernova shock waves) SF acting in Tololo 1937-423. The inferred ages for the different SF episodes (~13–80 Myr for the central post-starburst and 5–7 Myr for the ongoing SF) are consistent with triggered SF, with the most recent SF episode caused by the collective effect of stellar winds and supernova explosions from the central post-starburst. The velocity dispersion pattern, with higher velocity dispersions found at the edges of the SF regions, and shocked regions in the galaxy, also favor this scenario." @default.
• W3104453637 created "2020-11-23" @default.
• W3104453637 creator A5009820375 @default.
• W3104453637 creator A5030455579 @default.
• W3104453637 date "2017-12-01" @default.
• W3104453637 modified "2023-09-28" @default.
• W3104453637 title "Probing star formation and feedback in dwarf galaxies. Integral field view of the blue compact galaxy Tololo 1937-423" @default.
• W3104453637 cites W1599871640 @default.
• W3104453637 cites W1606552550 @default.
• W3104453637 cites W1615707189 @default.
• W3104453637 cites W1918803940 @default.
• W3104453637 cites W1950525446 @default.
• W3104453637 cites W1964280853 @default.
• W3104453637 cites W1967876247 @default.
• W3104453637 cites W1969093006 @default.
• W3104453637 cites W1969717379 @default.
• W3104453637 cites W1972117042 @default.
• W3104453637 cites W1973196718 @default.
• W3104453637 cites W1978212090 @default.
• W3104453637 cites W1982222124 @default.
• W3104453637 cites W1985209384 @default.
• W3104453637 cites W1986229062 @default.
• W3104453637 cites W1987635305 @default.
• W3104453637 cites W1988818331 @default.
• W3104453637 cites W1989114747 @default.
• W3104453637 cites W2003436661 @default.
• W3104453637 cites W2005276762 @default.
• W3104453637 cites W2006457604 @default.
• W3104453637 cites W2011654732 @default.
• W3104453637 cites W2015980508 @default.
• W3104453637 cites W2016858635 @default.
• W3104453637 cites W2025235333 @default.
• W3104453637 cites W2031469334 @default.
• W3104453637 cites W2034746733 @default.
• W3104453637 cites W2039241537 @default.
• W3104453637 cites W2039653171 @default.
• W3104453637 cites W2040798924 @default.
• W3104453637 cites W2041429415 @default.
• W3104453637 cites W204192878 @default.
• W3104453637 cites W2042459424 @default.
• W3104453637 cites W2053031883 @default.
• W3104453637 cites W2056883234 @default.
• W3104453637 cites W2057187675 @default.
• W3104453637 cites W2060633995 @default.
• W3104453637 cites W2063757314 @default.
• W3104453637 cites W2066255054 @default.
• W3104453637 cites W2068436852 @default.
• W3104453637 cites W2074161500 @default.
• W3104453637 cites W2075360386 @default.
• W3104453637 cites W2085043350 @default.
• W3104453637 cites W2088134590 @default.
• W3104453637 cites W2089390834 @default.
• W3104453637 cites W2090400051 @default.
• W3104453637 cites W2114395264 @default.
• W3104453637 cites W2124999166 @default.
• W3104453637 cites W2135919210 @default.
• W3104453637 cites W2145071926 @default.
• W3104453637 cites W2158736338 @default.
• W3104453637 cites W2163212281 @default.
• W3104453637 cites W2261808454 @default.
• W3104453637 cites W2270409135 @default.
• W3104453637 cites W2401435175 @default.
• W3104453637 cites W2511870890 @default.
• W3104453637 cites W2899497983 @default.
• W3104453637 cites W2949998780 @default.
• W3104453637 cites W2951323278 @default.
• W3104453637 cites W3098588467 @default.
• W3104453637 cites W3098784382 @default.
• W3104453637 cites W3100297059 @default.
• W3104453637 cites W3100926535 @default.
• W3104453637 cites W3100981047 @default.
• W3104453637 cites W3100988095 @default.
• W3104453637 cites W3102278865 @default.
• W3104453637 cites W3102635431 @default.
• W3104453637 cites W3103186191 @default.
• W3104453637 cites W3104342632 @default.
• W3104453637 cites W3106423526 @default.
• W3104453637 cites W3106442446 @default.
• W3104453637 cites W3124191121 @default.
• W3104453637 cites W2124971401 @default.
• W3104453637 hasPublicationYear "2017" @default.
• W3104453637 type Work @default.
• W3104453637 sameAs 3104453637 @default.
• W3104453637 citedByCount "0" @default.
• W3104453637 crossrefType "journal-article" @default.
• W3104453637 hasAuthorship W3104453637A5009820375 @default.
• W3104453637 hasAuthorship W3104453637A5030455579 @default.
• W3104453637 hasConcept C121332964 @default.
• W3104453637 hasConcept C125857072 @default.
• W3104453637 hasConcept C1276947 @default.
• W3104453637 hasConcept C150846664 @default.
• W3104453637 hasConcept C196939603 @default.
• W3104453637 hasConcept C37119246 @default.
• W3104453637 hasConcept C44870925 @default.
• W3104453637 hasConcept C4839761 @default.
• W3104453637 hasConcept C96141758 @default.
• W3104453637 hasConcept C98444146 @default.
• W3104453637 hasConceptScore W3104453637C121332964 @default.
• W3104453637 hasConceptScore W3104453637C125857072 @default.
• W3104453637 hasConceptScore W3104453637C1276947 @default.

• next