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Cited by 252

The DOI matches its Crossref record; 171 of the 171 references it cites were found in a registry or an index.

WHERE STARS FORM: INSIDE-OUT GROWTH AND COHERENT STAR FORMATION FROM HST Hα MAPS OF 3200 GALAXIES ACROSS THE MAIN SEQUENCE AT 0.7 < z < 1.5

Open access
Nelson, Erica June, van Dokkum, Pieter G., Förster Schreiber, Natascha M., Franx, Marijn, Brammer, Gabriel B., Momcheva, Ivelina G., Wuyts, Stijn, Whitaker, Katherine E., Skelton, Rosalind E., Fumagalli, Mattia, Hayward, Christopher C., Kriek, Mariska, Labbé, Ivo, Leja, Joel, Rix, Hans-Walter, Tacconi, Linda J., Wel, Arjen van der, Bosch, Frank C. van den, Oesch, Pascal A., Dickey, Claire, Lange, Johannes Ulf·2016·The Astrophysical Journal
DOI 10.3847/0004-637x/828/1/27
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Abstract

We present H α maps at 1 kpc spatial resolution for star-forming galaxies at z ∼ 1, made possible by the Wide Field Camera 3 grism on Hubble Space Telescope (HST). Employing this capability over all five 3D-HST/CANDELS fields provides a sample of 3200 galaxies enabling a division into subsamples based on stellar mass and star formation rate (SFR). By creating deep stacked H α images, we reach surface brightness limits of 1 × 10−18 erg s−1 cm−2 arcsec−2, allowing us to map the distribution of ionized gas to ∼10 kpc for typical L* galaxies at this epoch. We find that the spatial extent of the H α distribution increases with stellar mass as kpc. The H α emission is more extended than the stellar continuum emission, consistent with inside-out assembly of galactic disks. This effect grows stronger with mass as . We map the H α distribution as a function of SFR(IR+UV) and find evidence for “coherent star formation” across the SFR–M * plane: above the main sequence (MS), H α is enhanced at all radii; below the MS, H α is depressed at all radii. This suggests that at all masses the physical processes driving the enhancement or suppression of star formation act throughout the disks of galaxies. At high masses ( ), above the MS, H α is particularly enhanced in the center, potentially building bulges and/or supermassive black holes. Below the MS, a strong central dip in the EW(H α), as well as the inferred specific SFR, appears. Importantly, though, across the entirety of the SFR–M * plane, the absolute SFR as traced by H α is always centrally peaked, even in galaxies below the MS.

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Metadata

Authors
Nelson, E. J., van Dokkum, P. G., Förster Schreiber, N. M., Franx, M., Brammer, G. B., Momcheva, I. G., Wuyts, S., Whitaker, K. E., Skelton, R. E., Fumagalli, M., Hayward, C. C., Kriek, M., Labbé, I., Leja, J., Rix, H.-W., Tacconi, L. J., Wel, A. V. D., Bosch, F. C. V. D., Oesch, P. A., Dickey, C., & Lange, J. U.
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2016-08-25
Volume
828
Issue
1
Pages
27
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
DOI
10.3847/0004-637x/828/1/27
OpenAlex
W1649812273
Cited by
252
References
171
FWCI
15.95
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: WHERE STARS FORM: INSIDE-OUT GROWTH AND COHERENT STAR FORMATION FROM HST Hα MAPS OF 3200 GALAXIES ACROSS THE MAIN SEQUENCE AT 0.7 < z < 1.5. https://app.cochat.ai/papers/10.3847/0004-637x/828/1/27
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Nelson, E. J., van Dokkum, P. G., Förster Schreiber, N. M., Franx, M., Brammer, G. B., Momcheva, I. G., Wuyts, S., Whitaker, K. E., Skelton, R. E., Fumagalli, M., Hayward, C. C., Kriek, M., Labbé, I., Leja, J., Rix, H.-W., Tacconi, L. J., Wel, A. V. D., Bosch, F. C. V. D., Oesch, P. A., . . . Lange, J. U. (2016). WHERE STARS FORM: INSIDE-OUT GROWTH AND COHERENT STAR FORMATION FROM HST Hα MAPS OF 3200 GALAXIES ACROSS THE MAIN SEQUENCE AT 0.7 < z < 1.5. The Astrophysical Journal. https://doi.org/10.3847/0004-637x/828/1/27

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.