Zobrazeno 1 - 10 of 130 pro vyhledávání: '"Wolfram Freudling"'
1
The Arecibo Ultra-Deep Survey
Autor: Bi-Qing For, Lister Staveley-Smith, Laura Hoppmann, Fu Heng Liang, Hongwei Xi, Martin Zwaan, Bo Peng, Wolfram Freudling
Publikováno v: Monthly Notices of the Royal Astronomical Society. 501:4550-4564
The Arecibo Ultra Deep Survey (AUDS) is a blind HI survey aimed at detecting galaxies beyond the local Universe in the 21-cm emission line of neutral hydrogen (HI). The Arecibo $L$-band Feed Array (ALFA) was used to image an area of 1.35~deg$^2$ to a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd5858c72867d3e741067f4625876e40
https://doi.org/10.1093/mnras/staa3931
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4
High-redshift Damped Ly-alpha Absorbing Galaxy Model Reproducing the N(HI)-Z Distribution
Autor: Wolfram Freudling, Lise Christensen, Johan P. U. Fynbo, Palle Møller, Pasquier Noterdaeme, Jens-Kristian Krogager
Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 495 (3), pp.3014-3021. ⟨10.1093/mnras/staa1414⟩
Krogager, J-K, Moller, P, Christensen, L B, Noterdaeme, P, Fynbo, J P U & Freudling, W 2020, ' High-redshift damped Ly alpha absorbing ga axy model reproducing the N-HI-Z distribution ', Monthly Notices of the Royal Astronomical Society, vol. 495, no. 3, pp. 3014-3021 . https://doi.org/10.1093/mnras/staa1414
We investigate how damped Lyman-$\alpha$ absorbers (DLAs) at z ~ 2-3, detected in large optical spectroscopic surveys of quasars, trace the population of star-forming galaxies. Building on previous results, we construct a model based on observed and
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6
Mass and metallicity scaling relations of high-redshift star-forming galaxies selected by GRBs
Autor: Martin Zwaan, A. de Ugarte Postigo, Andrew J. Levan, Pall Jakobsson, A. Gomboc, Wolfram Freudling, Nial R. Tanvir, Kasper E. Heintz, S. D. Vergani, M. Arabsalmani, Johan P. U. Fynbo, Valerio D'Elia, Martin Sparre, Zach Cano, Palle Møller, E. Le Floc'h, Steve Schulze, P. Goldoni, Lise Christensen, Daniel A. Perley, D. Malesani, Stefano Covino
Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2018, 473 (3), pp.3312-3324. ⟨10.1093/mnras/stx2451⟩
Monthly Notices of the Royal Astronomical Society, 2018, 473 (3), pp.3312-3324. ⟨10.1093/mnras/stx2451⟩
Digital.CSIC. Repositorio Institucional del CSIC
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We present a comprehensive study of the relations between gas kinematics, metallicity, and stellar mass in a sample of 82 GRB-selected galaxies using absorption and emission methods. We find the velocity widths of both emission and absorption profile
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7
On the mass–metallicity relation, velocity dispersion, and gravitational well depth of GRB host galaxies
Autor: Johan P. U. Fynbo, Lise Christensen, M. Arabsalmani, Tayyaba Zafar, Wolfram Freudling, Sandra Savaglio, Palle Møller
Publikováno v: Monthly Notices of the Royal Astronomical Society
We analyze a sample of 16 absorption systems intrinsic to long duration GRB host galaxies at $z \gtrsim 2$ for which the metallicities are known. We compare the relation between the metallicity and cold gas velocity width for this sample to that of t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cb4db4fa04aa6979ce1ec2a312b2878
https://doi.org/10.1093/mnras/stu2138
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8
Delivering data reduction pipelines to science users
Autor: Wolfram Freudling, Martino Romaniello
Publikováno v: Observatory Operations: Strategies, Processes, and Systems VI.
The European Southern Observatory has a long history of providing specialized data processing algorithms, called recipes, for most of its instruments. These recipes are used for both operational purposes at the observatory sites, and for data reducti
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https://doi.org/10.1117/12.2232734
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9
A Method to improve line flux and redshift measurements with narrowband filters
Autor: Johannes Zabl, Bo Milvang-Jensen, L. A. M. Tasca, Kim K. Nilsson, Wolfram Freudling, O. Le Fevre, Johan P. U. Fynbo, Palle Møller
Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2016, 590, ⟨10.1051/0004-6361/201526378⟩
Astronomy and Astrophysics-A&A, 2016, 590, ⟨10.1051/0004-6361/201526378⟩
Astronomy & Astrophysics
High redshift star-forming galaxies are discovered routinely through a flux excess in narrowband filters (NB) caused by an emission line. In most cases, the width of such filters is broad compared to typical line widths, and the throughput of the fil
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc6ebe3e2576c942b42bc09ff26fe0fc
http://arxiv.org/abs/1602.06304
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10
Systematic trends in Sloan Digital Sky Survey photometric data
Autor: Wolfram Freudling, D. M. Bramich
Publikováno v: Monthly Notices of the Royal Astronomical Society. 424:1584-1599
We investigate the Sloan Digital Sky Survey (SDSS) photometry from Data Release 8 (DR8) in the search for systematic trends that still exist after the calibration effort of Padmanabhan et al. We consider both the aperture and point-spread function (P
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https://doi.org/10.1111/j.1365-2966.2012.21385.x
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