Low-redshift Lyman continuum leaking galaxies with high [O iii]/[O ii] ratios

Autor: Y. I. Izotov, Ivana Orlitova, N. G. Guseva, Daniel Schaerer, Gabor Worseck, Fricke Fricke, Trinh X. Thuan, Anne Verhamme

Publikováno v: Monthly Notices of the Royal Astronomical Society

We present observations with the Cosmic Origins Spectrograph onboard the Hubble Space Telescope of five star-forming galaxies at redshifts z in the range 0.2993-0.4317 and with high emission-line flux ratios O32=[OIII]5007/[OII]3727 ~ 8-27 aiming to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a36ed888ac37b5aad22b87503d2707f
https://doi.org/10.1093/mnras/sty1378

Mapping the working of environmental effects in A963

Autor: Bodo L. Ziegler, Ivana Orlitova, Chris P. Haines, Rhys Taylor, Ho Seong Hwang, Maret Einasto, Boris Deshev, Alexis Finoguenov

Publikováno v: Astronomy & Astrophysics. 638:A126

We qualitatively assess and map the relative contribution of pre-processing and cluster related processes to the build-up of A963, a massive cluster at z=0.2 showing an unusually high fraction of star forming galaxies in its interior. We use Voronoi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3809d7da694f644a21b5f248621191cf
https://doi.org/10.1051/0004-6361/202037803

J1154+2443: a low-redshift compact star-forming galaxy with a 46 per cent leakage of Lyman continuum photons

Autor: Y. I. Izotov, N. G. Guseva, Anne Verhamme, Daniel Schaerer, Ivana Orlitova, Klaus J. Fricke, Trinh X. Thuan, Gabor Worseck

Publikováno v: Monthly Notices of the Royal Astronomical Society

We report the detection of the Lyman continuum (LyC) radiation of the compact star-forming galaxy (SFG) J1154+2443 observed with the Cosmic Origins Spectrograph (COS) onboard the Hubble Space Telescope. This galaxy, at a redshift of z=0.3690, is char

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed3db8150cada1289245acf3661a7b1a
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/53477

The VIMOS Ultra Deep Survey: The role of HI kinematics and HI column density on the escape of Lya photons in star-forming galaxies at 2 < z < 4

Autor: Anton M. Koekemoer, Ricardo Amorín, Ivana Orlitova, Marco Castellano, R. Thomas, Andrea Grazian, S. Bardelli, Daniel Schaerer, L. A. M. Tasca, E. Zucca, B. Ribeiro, Brian C. Lemaux, F. Marchi, Nimish P. Hathi, Anne Verhamme, Paolo Cassata, Margherita Talia, D. Maccagni, O. Le Fevre, Laura Pentericci, Le Brun, B. Garilli, Eros Vanzella, G. Zamorani, Lucia Guaita

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2017, 606, ⟨10.1051/0004-6361/201730603⟩
Astronomy and Astrophysics-A&A, 2017, 606, ⟨10.1051/0004-6361/201730603⟩

We selected a sample of 76 Lya emitting galaxies from the VIMOS Ultra Deep Survey (VUDS) at 2300km/sec. An ISM with this value of NHI would favour a large amount of scattering events, especially when the medium is static, so it can explain large valu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47a81ef542c70322abaa1c86976e11a6
http://hdl.handle.net/11585/622553

Detection of high Lyman continuum leakage from four low-redshift compact star-forming galaxies

Autor: Natalia G. Guseva, Trinh X. Thuan, Gabor Worseck, Yuri I. Izotov, Daniel Schaerer, Ivana Orlitova, Anne Verhamme

Following our first detection reported in Izotov et al. (2016), we present the detection of Lyman continuum (LyC) radiation of four other compact star-forming galaxies observed with the Cosmic Origins Spectrograph (COS) onboard the Hubble Space Teles

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b9c750db4c02b09224fa3ac152ffe91
http://arxiv.org/abs/1605.05160