A deep narrow band imaging search for CIVλ1548Å and HeIIλ1640Å Emission from Lyman alpha blobs

Fabrizio Arrigoni Battaia, Y. Yang, J. F. Hennawi, Y. Matsuda, T. Yamada, T. Hayashino

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To study the nature of Lyα blobs (aka LABs), we conduct a deep C IV and He II narrowband imaging survey of 13 Lyα blobs located in SSA22 proto-cluster at z ∼ 3.1. We reach the unprecedented sensitivity, 5σ surface brightness limit of 2.1 - 3.4 × 10-18 erg s -1 cm-2 arcsec-2 per 1 arcsec2 aperture for two emission lines. We do not detect any extended C IV and He II emission, placing strong upper limits on the He II/Lyα and C IV/Lyα line ratios. We compare our limits with data in the literature related to the nebulae associated with high-redshift radio galaxies (HzRGs) and quasars, and we recover the data by modeling the LABs as nebulosities powered by a central QSO. For further information see Arrigoni Battaia et al. (2014).

Original languageEnglish
Title of host publicationMultiwavelength AGN Surveys and Studies
PublisherCambridge University Press
Pages32-33
Number of pages2
EditionS304
ISBN (Print)9781107045248
DOIs
Publication statusPublished - 2014 Jul

Publication series

NameProceedings of the International Astronomical Union
NumberS304
Volume9
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221

Keywords

  • CGM
  • LAB
  • QSO
  • photoionization

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science

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