1. RRI Digital Repository
  2. 04. Astronomy and Astrophysics
  3. Research Papers (A&A)
Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4452
Full metadata record
DC FieldValueLanguage
dc.contributor.authorBagla, Jasjeet S.-
dc.contributor.authorNath, Biman B.-
dc.contributor.authorPadmanabhan, T.-
dc.date.accessioned2012-05-07T08:48:53Z-
dc.date.available2012-05-07T08:48:53Z-
dc.date.issued1997-08-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 1997, Vol.289, p671en
dc.identifier.issn0035-8711-
dc.identifier.issn1365-2966 (Online)-
dc.identifier.urihttp://hdl.handle.net/2289/4452-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en
dc.description.abstractLarge inhomogeneities in neutral hydrogen in the Universe can be detected at redshifts z<=10 using the redshifted 21-cm line emission. We use cosmological N-body simulations for dark matter and a simple model for baryonic collapse to estimate the signal expected from structures like protoclusters of galaxies at high redshifts. We study (i) the standard cold dark matter (CDM) model, (ii) a modified CDM model with less power at small scales, and (iii) a Lambda+CDM model in a universe with Omega_0+Omega_L=1. We show that it should be possible for the next generation of radio telescopes to detect such structures at a redshift of 3.34 with an integration of about 100 h. We also discuss possible schemes for enhancing signal-to-noise ratio to detect protocondensates at high redshifts.en
dc.language.isoenen
dc.publisherRoyal Astronomical Societyen
dc.relation.urihttp://adsabs.harvard.edu/abs/1997MNRAS.289..671Ben
dc.relation.urihttp://arxiv.org/abs/astro-ph/9610267en
dc.rights1997 Royal Astronomical Societyen
dc.titleNeutral hydrogen at high redshifts as a probe of structure formation - III: Radio maps from N-body simulationsen
dc.typeArticleen
Appears in Collections:Research Papers (A&A)

Files in This Item:
File Description SizeFormat 
1997_MNRAS_V289_p671.pdf
  Restricted Access		Restricted Access1.16 MBAdobe PDFView/Open Request a copy
Show simple item record


Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.