SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Masegosa J.) ;pers:(Bergvall N.)"

Sökning: WFRF:(Masegosa J.) > Bergvall N.

  • Resultat 1-9 av 9
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Bergvall, N, et al. (författare)
  • LWS spectroscopy of the luminous blue compact galaxy Haro 11
  • 2000
  • Ingår i: ASTRONOMY AND ASTROPHYSICS. - : SPRINGER-VERLAG. - 0004-6361. ; 359:1, s. 41-50
  • Tidskriftsartikel (refereegranskat)abstract
    • We present the results of far infrared (FIR) spectroscopy of the luminous blue compact galaxy (BCG) Hare 11 (ESO 350-IG38) obtained with the Long Wavelength Spectrometer (LWS) on the Infrared Space Observatory (ISO) in low resolution mode. This metal poor
  •  
2.
  • Bergvall, N, et al. (författare)
  • Optical/near-IR surface photometry of blue low surface brightness galaxies
  • 1999
  • Ingår i: ASTRONOMY AND ASTROPHYSICS. - : SPRINGER VERLAG. - 0004-6361. ; 341:3, s. 697-708
  • Tidskriftsartikel (refereegranskat)abstract
    • We present luminosity profiles, colour profiles and disk parameters based on near-infrared JHK surface photometry of a sample of blue low surface brightness galaxies (BLSBGs). The results are discussed along with previously obtained optical data. We find
  •  
3.
  •  
4.
  •  
5.
  •  
6.
  • Bergvall, N, et al. (författare)
  • Starburst dwarfs - Fueling and morphological evolution
  • 1999
  • Ingår i: ASTROPHYSICS AND SPACE SCIENCE. - : KLUWER ACADEMIC PUBL. - 0004-640X. ; 269, s. 625-628
  • Tidskriftsartikel (refereegranskat)abstract
    • The effects of mergers in low mass galaxies are poorly understood. In this paper we analyze different observational evidences which support the view that mergers can trigger starbursts in dwarf galaxies. We discuss the relationships between blue compact g
  •  
7.
  •  
8.
  • Cumming, Robert, 1967, et al. (författare)
  • Stellar dynamics of blue compact galaxies - II. Further indications of a merger in ESO 338-IG04
  • 2008
  • Ingår i: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 479:3, s. 725-733
  • Tidskriftsartikel (refereegranskat)abstract
    • Context. Luminous blue compact galaxies, common at z similar to 1 but now relatively rare, show disturbed kinematics in emission lines. Aims. As part of a programme to understand their formation and evolution, we have investigated the stellar dynamics of a number of nearby objects in this class. Methods. We obtained long-slit spectra with VLT/FORS2 in the spectral region covering the near-infrared calcium triplet. In this paper we focus on the well-known luminous blue compact galaxy ESO338-IG04 (Tololo 1924 - 416). A previous investigation, using Fabry-Perot interferometry, showed that this galaxy has a chaotic Ha velocity field, indicating that either the galaxy is not in dynamical equilibrium or that Ha does not trace the gravitational potential due to feedback from star formation. Results. Along the apparent major axis, the stellar and ionised gas velocities for the most part follow each other. The chaotic velocity field must therefore be a sign that the young stellar population in ESO338-IG04 is not in dynamical equilibrium. The most likely explanation, which is also supported by its morphology, is that the galaxy has experienced a merger and that this has triggered the current starburst. Summarising the results of our programme so far, we note that emission-line velocity fields are not always reliable tracers of stellar motions, and go on to assess the implications for kinematic studies of similar galaxies at intermediate redshift.
  •  
9.
  • Micheva, G., et al. (författare)
  • Deep multiband surface photometry on star forming galaxies : I. A sample of 24 blue compact galaxies
  • 2012
  • Ingår i: ArXiv e-prints.
  • Tidskriftsartikel (refereegranskat)abstract
    • [Abridged] We present deep optical and near-infrared UBVRIHKs imaging data for 24 blue compact galaxies (BCGs). The sample contains luminous dwarf and intermediate-mass BCGs which are predominantly metal-poor, although a few have near-solar metallicities. We have analyzed isophotal and elliptical integration surface brightness and color profiles, extremely deep (mu_B\lt29 mag arcsec\^$$-2$$) contour maps and RGB images for each galaxy in the sample. The colors are compared to different spectral evolutionary models. We detect extremely extended low surface brightness (LSB) components dominant beyond the Holmberg radius as well as optical bridges between companion galaxies at the mu_V~28th mag arcsec\^$$-2$$ isophotal level. The central surface brightness mu_0 and scale length h_r are derived from two radial ranges typically assumed to be dominated by the underlying host galaxy. We find that mu_0 and h_r of the BCGs host deviate from those of dwarf ellipticals (dE) and dwarf irregulars (dI) solely due to a strong burst contribution to the surface brightness profile almost down to the Holmberg radius. Structural parameters obtained from a fainter region, mu_B=26-28 mag arcsec\^$$-2$$, are consistent with those of true LSB galaxies for the starbursting BCGs in our sample, and with dEs and dIs for the BCGs with less vigorous star formation.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-9 av 9

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy