Pith. sign in

REVIEW 2 cited by

The Intergalactic medium transmission towards z>4 galaxies with VANDELS and the impact of dust attenuation

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1911.12532 v1 pith:VPF5JDBX submitted 2019-11-28 astro-ph.CO astro-ph.GA

R. Thomas , L. Pentericci , O. Le Fèvre , G. Zamorani , D. Schaerer , R. Amorin , M. Castellano , A. C. Carnall
show 17 more authors
S. Cristiani F. Cullen S. L. Finkelstein F. Fontanot L. Guaita P. Hibon N. Hathi J. P. U. Fynbo Y. Khusanova A. M. Koekemoer D. McLeod R. J. McLure F. Marchi L. Pozzetti A. Saxena M. Talia M. Bolzonella
This is my paper
classification astro-ph.COastro-ph.GA
keywords transmissiondustgalaxiesestimatemeasurementsredshiftattenuationfind
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

Aims. Our aim is to estimate the intergalactic medium transmission towards UV-selected star-forming galaxies at redshift 4 and above and study the effect of the dust attenuation on these measurements. Methods. The ultra-violet spectrum of high redshift galaxies is a combination of their intrinsic emission and the effect of the Inter-Galactic medium (IGM) absorption along their line of sight. Using data coming from the unprecedented deep spectroscopy from the VANDELS ESO public survey carried out with the VIMOS instrument we compute both the dust extinction and the mean transmission of the IGM as well as its scatter from a set of 281 galaxies at z>3.87. Because of a degeneracy between the dust content of the galaxy and the IGM, we first estimate the stellar dust extinction parameter E(B-V) and study the result as a function of the dust prescription. Using these measurements as constraint for the spectral fit we estimate the IGM transmission Tr(Lyalpha). Both photometric and spectroscopic SED fitting are done using the SPectroscopy And photometRy fiTting tool for Astronomical aNalysis (SPARTAN) that is able to fit the spectral continuum of the galaxies as well as photometric data. Results. Using the classical Calzetti's attenuation law we find that E(B-V) goes from 0.11 at z=3.99 to 0.08 at z=5.15. These results are in very good agreement with previous measurements from the literature. We estimate the IGM transmission and find that the transmission is decreasing with increasing redshift from Tr(Lyalpha)=0.53 at z=3.99 to 0.28 at z=5.15. We also find a large standard deviation around the average transmission that is more than 0.1 at every redshift. Our results are in very good agreement with both previous measurements from AGN studies and with theoretical models.

Discussion (0). Sign in to comment.

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Gamma-ray burst progenitors revisited

    astro-ph.HE 2026-07 conditional novelty 6.0 of 10

    About 30–40% of long gamma-ray bursts at z<0.3 lack supernova emission and likely arise from compact object mergers, at rates comparable to short GRBs.

  2. Cosmic CORALS: Timing the Universe with high-z star clusters

    astro-ph.CO 2026-07 conditional novelty 5.0 of 10

    Star clusters at z=9.6 combined with local globular cluster ages give H0=70(+27,-16) km/s/Mpc and Omega_m=0.33(+0.37,-0.21), with a forecast that ~300 clusters could reach 4% precision.

Pith tools