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Filamentary Large-scale Structure Traced by Six Lyα Blobs at z = 2.3

Erb, Dawn K. and Bogosavljević, Milan and Steidel, Charles C. (2011) Filamentary Large-scale Structure Traced by Six Lyα Blobs at z = 2.3. Astrophysical Journal Letters, 740 (1). Art. No. L31. ISSN 2041-8205.

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Extended nebulae of Lyα emission ("Lyα blobs") are known to be associated with overdense regions at high redshift. Here we present six large Lyα blobs in a previously known protocluster with galaxy overdensity δ ~ 7 at z = 2.3; this is the richest field of giant Lyα blobs detected to date. The blobs have linear sizes of ≳ 100 kpc and Lyα luminosities of ~10^(43) erg s^(–1). The positions of the blobs define two linear filaments with an extent of at least 12 comoving Mpc; these filaments intersect at the center of one of the blobs. Measurement of the position angles of the blobs indicates that five of the six are aligned with these filaments to within ~10°, suggesting a connection between the physical processes powering extended Lyα emission and those driving structure on larger scales.

Item Type:Article
Related URLs:
URLURL TypeDescription
Erb, Dawn K.0000-0001-9714-2758
Steidel, Charles C.0000-0002-4834-7260
Additional Information:© 2011 American Astronomical Society. Received 2011 August 17; accepted 2011 September 9; published 2011 September 22. Alice Shapley, Naveen Reddy, and Max Pettini provided essential contributions to the survey on which this work is based. We also thank the staffs of Palomar and Keck Observatories for assistance with the observations, Yuichi Matsuda for useful suggestions, and the referee for helpful comments. D.K.E. acknowledges support from the University of Wisconsin Research Growth Initiative, and C.C.S. from the US National Science Foundation through grants AST-0606912 and AST-0908805, with additional support from the John D. and Catherine T. MacArthur Foundation and the Peter and Patricia Gruber Foundation.
Funding AgencyGrant Number
University of WisconsinUNSPECIFIED
John D. and Catherine T. MacArthur FoundationUNSPECIFIED
Peter and Patricia Gruber FoundationUNSPECIFIED
Subject Keywords:galaxies: evolution; galaxies: formation; galaxies: high-redshift; large-scale structure of universe
Issue or Number:1
Classification Code:PACS: 98.62.Ai;98.80.Cq;98.54.Cm;98.65.Cw;98.62.Py
Record Number:CaltechAUTHORS:20111014-095153900
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Official Citation:Filamentary Large-scale Structure Traced by Six Lyα Blobs at z = 2.3 Dawn K. Erb et al. 2011 ApJ 740 L31
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:27225
Deposited By: Jason Perez
Deposited On:14 Oct 2011 20:04
Last Modified:04 Dec 2019 23:02

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