Pith. sign in

REVIEW 8 cited by

PEGASE: a UV to NIR spectral evolution model of galaxies - Application to the calibration of bright galaxy counts

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 astro-ph/9707017 v1 pith:V6OBYDSY submitted 1997-07-02 astro-ph

Michel Fioc , Brigitte Rocca-Volmerange (Institut d'Astrophysique de Paris) This is my paper · ORCID
classification astro-ph
keywords modelevolutiongalaxiesapplicationbrightcontinuouscountsgalaxy
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

PEGASE is a new spectrophotometric evolution model for starbursts and evolved galaxies of the Hubble sequence. Its main originality is the extension to the near-infrared (NIR) of the atlas of synthetic spectra of Rocca-Volmerange & Guiderdoni (1988) with a revised stellar library including cold star parameters and stellar tracks extended to the TP-AGB and the post-AGB phase. The NIR is coherently linked to the visible and the ultraviolet, so that the model is continuous on an exceptionally large wavelength range from 220 A up to 5 microns. Moreover, a precise algorithm allows to follow very rapid evolutionary phases such as red supergiants or AGB crucial in the NIR. The nebular component is also computed in the NIR. The extinction correction is gas-dependent for spirals and ellipticals. A set of reference synthetic spectra at z=0, to which apply cosmological k- and evolution e- corrections for high-redshift galaxies, is built from fits of observational templates. Because of the lack of visible to NIR spectral templates for each Hubble type, we adopt statistical samples of colors, not fitted by previous models. A first application of this continuous model is to solve the problem of the slope of the bright galaxy counts from B=15 to 19 and of the normalization parameter of the Schechter luminosity function. Code sources, input and output data are available by anonymous ftp or at the WEB address of the authors.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 8 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 35 citations worldwide. Full citation record

  1. Hector Galaxy Survey: Linking the low- and high-mass ends of the initial mass function in star-forming galaxies

    astro-ph.GA 2026-06 unverdicted novelty 7.0 of 10

    Simultaneous measurement of low- and high-mass IMF slopes in 214 star-forming galaxies reveals diversity, weak correlation between ends, and links to stellar mass, star formation rate, and metallicity.

  2. Large-Scale Stellar Age-Velocity Spiral Pattern in NGC 4030

    astro-ph.GA 2024-11 conditional novelty 7.0 of 10

    A spiral pattern in the stellar velocity dispersion map of NGC 4030 correlates with star-forming regions, supporting the idea that stars inherit the motion of their parent gas and are later heated.

  3. Comparing the Near-infrared Spectral Energy Distributions from Different Stellar Population Synthesis Models with SPHEREx Observations

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

    Four stellar-population models overpredict the 2.4–5 μm stellar continuum of quiescent compact galaxies by 0.1–0.3 mag, with the biggest excess at intermediate ages (1–5 Gyr).

  4. Stellar Population Spectra Incorporating Detailed Binary Evolution using POSYDON

    astro-ph.SR 2026-06 unverdicted novelty 6.0 of 10

    New spectral models of solar-metallicity stellar populations using POSYDON show binary-stripped stars dominating ionizing radiation after about 16 Myr.

  5. ESpRESSO -- Forward modeling Roman Space Telescope spectroscopy

    astro-ph.IM 2024-12 conditional novelty 6.0 of 10

    A new simulation suite, ESpRESSO, generates Roman grism survey scenes from Hubble imaging and synthetic SEDs, with injected Lyman-alpha galaxies and noise, for testing future spectral extraction tools.

  6. Galaxy Morphology in CANDELS: Addressing Evolutionary Changes Across $0.2 \leq z \leq 2.4$ with Hybrid Classification Approach

    astro-ph.GA 2024-12 conditional novelty 6.0 of 10

    Using redshift-bin-dedicated hybrid unsupervised-supervised classification of CANDELS galaxies, the authors report a roughly constant disk fraction (~60%) and spheroid fraction (~30%) across 0.2<z<2.4, challenging vis...

  7. Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs

    astro-ph.GA 2026-06 unverdicted novelty 5.0 of 10

    Abundance analysis of 84 type-2 AGNs finds oversolar He and subsolar O at z>2.8, including one object at z=6.26 with record He abundance of 12+log(He/H)=11.64, plus marginal trends of declining He/H and rising O/H toward z=0.

  8. A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). X. The Massive and Passive Nature of Radio Galaxies at $z \sim 4$

    astro-ph.GA 2024-11 conditional novelty 5.0 of 10

    A wide Subaru HSC survey finds 7 candidate radio galaxies at z~4 with stellar masses of a few 10^11 solar masses whose rest-frame UVJ colors indicate fast quenching in about 0.1 Gyr.

Pith tools