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Papers by Evan Skillman

Research paper thumbnail of Star Formation Histories of Local Group Dwarf Galaxies

arXiv (Cornell University), Jun 17, 2005

Research paper thumbnail of Characterizing the Physical Properties of Extremely Low-Mass SHIELD Galaxies

American Astronomical Society Meeting Abstracts #235, 2020

Research paper thumbnail of The Supernova Impostor SN 2010da

American Astronomical Society Meeting Abstracts #227, 2016

Research paper thumbnail of SHIELD II: TRGB Distance Measurements from HST Imaging

Research paper thumbnail of Investigating the Low-Mass Stellar Initial Mass Function in Draco

American Astronomical Society Meeting Abstracts #225, 2015

University of Minnesota M.S. thesis. May 2016. Major: Astrophysics. Advisors: Evan Skillman, Dan ... more University of Minnesota M.S. thesis. May 2016. Major: Astrophysics. Advisors: Evan Skillman, Dan Weisz. 1 computer file (PDF); vii, 41 pages.

Research paper thumbnail of Comparing the Quenching Times of Faint M31 and Milky Way Satellite Galaxies

The astrophysical journal, Oct 25, 2019

Research paper thumbnail of Galactic Winds in Low-mass Galaxies

The Astrophysical Journal, Nov 21, 2019

Research paper thumbnail of The Star Formation Histories of Local Group Dwarf Galaxies. II. Searching for Signatures of Reionization

The Astrophysical Journal, Jun 24, 2014

Research paper thumbnail of A rogues gallery of Andromeda’s dwarf galaxies – II. Precise distances to 17 faint satellites

Monthly Notices of the Royal Astronomical Society, Jul 22, 2019

Research paper thumbnail of Alfalfa Discovery of the Nearby Gas-Rich Dwarf Galaxy Leo P. V. Neutral Gas Dynamics and Kinematics

The Astronomical Journal, Jul 16, 2014

Research paper thumbnail of The Panchromatic Hubble Andromeda Treasury. VIII. A Wide-Area, High-Resolution Map of Dust Extinction in M31

The Astrophysical Journal, Nov 10, 2015

Research paper thumbnail of DUSTiNGS. III. DISTRIBUTION OF INTERMEDIATE-AGE AND OLD STELLAR POPULATIONS IN DISKS AND OUTER EXTREMITIES OF DWARF GALAXIES

Carolina Digital Repository (University of North Carolina at Chapel Hill), 2017

Research paper thumbnail of Asymptotic Giant Branch Stars in the Nearby Dwarf Galaxy Leo P

The Astrophysical Journal, Oct 21, 2019

Research paper thumbnail of A Panchromatic Study of Massive Stars in the Extremely Metal-Poor Local Group Dwarf Galaxy Leo A

arXiv (Cornell University), Nov 25, 2022

Research paper thumbnail of Spitzer Imaging of the SHIELD Galaxies

American Astronomical Society Meeting Abstracts, 2020

Research paper thumbnail of Testing Density Wave Theory with Resolved Stellar Populations Around Spiral Arms in M81

The Astrophysical Journal, Aug 24, 2015

Research paper thumbnail of An Infrared Census of DUST in Nearby Galaxies with<i>Spitzer</i>(DUSTiNGS). IV. Discovery of High-redshift AGB Analogs

The Astrophysical Journal, Dec 22, 2017

Research paper thumbnail of The Advanced Camera for Surveys Nearby Galaxy Survey Treasury. IV. The Star Formation History of NGC 2976

The Astrophysical Journal, Dec 29, 2009

Research paper thumbnail of THE STAR FORMATION HISTORIES OF LOCAL GROUP DWARF GALAXIES. I.<i>HUBBLE SPACE TELESCOPE</i>/WIDE FIELD PLANETARY CAMERA 2 OBSERVATIONS

The Astrophysical Journal, Jun 24, 2014

Research paper thumbnail of Low-metallicity Galaxies from the Dark Energy Survey

The Astrophysical Journal, Jul 1, 2023

We present a new selection of 358 blue compact dwarf galaxies (BCDs) from 5000 square degrees in ... more We present a new selection of 358 blue compact dwarf galaxies (BCDs) from 5000 square degrees in the Dark Energy Survey, and the spectroscopic follow-up of a subsample of 68 objects. For the subsample of 34 objects with deep spectra, we measure the metallicity via the direct T e method using the auroral [O iii]λ 4363 emission line. These BCDs have an average oxygen abundance of 12+log(O/H) = 7.8, with stellar masses between 107 and 108 M ⊙ and specific star-formation rates between ∼10−9 and 10−7 yr−1. We compare the position of our BCDs with the mass–metallicity (M–Z) and luminosity–metallicity (L–Z) relation derived from the Local Volume Legacy sample. We find the scatter about the M–Z relation is smaller than the scatter about the L–Z relation. We identify a correlation between the offsets from the M–Z and L–Z relation that we suggest is due to the contribution of metal-poor inflows. Finally, we explore the validity of the mass–metallicity–SFR fundamental plane in the mass range probed by our galaxies. We find that BCDs with stellar masses smaller than 108 M ⊙ do not follow the extrapolation of the fundamental plane. This result suggests that mechanisms other than the balance between inflows and outflows may be at play in regulating the position of low-mass galaxies in the M–Z–SFR space.

Research paper thumbnail of Star Formation Histories of Local Group Dwarf Galaxies

arXiv (Cornell University), Jun 17, 2005

Research paper thumbnail of Characterizing the Physical Properties of Extremely Low-Mass SHIELD Galaxies

American Astronomical Society Meeting Abstracts #235, 2020

Research paper thumbnail of The Supernova Impostor SN 2010da

American Astronomical Society Meeting Abstracts #227, 2016

Research paper thumbnail of SHIELD II: TRGB Distance Measurements from HST Imaging

Research paper thumbnail of Investigating the Low-Mass Stellar Initial Mass Function in Draco

American Astronomical Society Meeting Abstracts #225, 2015

University of Minnesota M.S. thesis. May 2016. Major: Astrophysics. Advisors: Evan Skillman, Dan ... more University of Minnesota M.S. thesis. May 2016. Major: Astrophysics. Advisors: Evan Skillman, Dan Weisz. 1 computer file (PDF); vii, 41 pages.

Research paper thumbnail of Comparing the Quenching Times of Faint M31 and Milky Way Satellite Galaxies

The astrophysical journal, Oct 25, 2019

Research paper thumbnail of Galactic Winds in Low-mass Galaxies

The Astrophysical Journal, Nov 21, 2019

Research paper thumbnail of The Star Formation Histories of Local Group Dwarf Galaxies. II. Searching for Signatures of Reionization

The Astrophysical Journal, Jun 24, 2014

Research paper thumbnail of A rogues gallery of Andromeda’s dwarf galaxies – II. Precise distances to 17 faint satellites

Monthly Notices of the Royal Astronomical Society, Jul 22, 2019

Research paper thumbnail of Alfalfa Discovery of the Nearby Gas-Rich Dwarf Galaxy Leo P. V. Neutral Gas Dynamics and Kinematics

The Astronomical Journal, Jul 16, 2014

Research paper thumbnail of The Panchromatic Hubble Andromeda Treasury. VIII. A Wide-Area, High-Resolution Map of Dust Extinction in M31

The Astrophysical Journal, Nov 10, 2015

Research paper thumbnail of DUSTiNGS. III. DISTRIBUTION OF INTERMEDIATE-AGE AND OLD STELLAR POPULATIONS IN DISKS AND OUTER EXTREMITIES OF DWARF GALAXIES

Carolina Digital Repository (University of North Carolina at Chapel Hill), 2017

Research paper thumbnail of Asymptotic Giant Branch Stars in the Nearby Dwarf Galaxy Leo P

The Astrophysical Journal, Oct 21, 2019

Research paper thumbnail of A Panchromatic Study of Massive Stars in the Extremely Metal-Poor Local Group Dwarf Galaxy Leo A

arXiv (Cornell University), Nov 25, 2022

Research paper thumbnail of Spitzer Imaging of the SHIELD Galaxies

American Astronomical Society Meeting Abstracts, 2020

Research paper thumbnail of Testing Density Wave Theory with Resolved Stellar Populations Around Spiral Arms in M81

The Astrophysical Journal, Aug 24, 2015

Research paper thumbnail of An Infrared Census of DUST in Nearby Galaxies with<i>Spitzer</i>(DUSTiNGS). IV. Discovery of High-redshift AGB Analogs

The Astrophysical Journal, Dec 22, 2017

Research paper thumbnail of The Advanced Camera for Surveys Nearby Galaxy Survey Treasury. IV. The Star Formation History of NGC 2976

The Astrophysical Journal, Dec 29, 2009

Research paper thumbnail of THE STAR FORMATION HISTORIES OF LOCAL GROUP DWARF GALAXIES. I.<i>HUBBLE SPACE TELESCOPE</i>/WIDE FIELD PLANETARY CAMERA 2 OBSERVATIONS

The Astrophysical Journal, Jun 24, 2014

Research paper thumbnail of Low-metallicity Galaxies from the Dark Energy Survey

The Astrophysical Journal, Jul 1, 2023

We present a new selection of 358 blue compact dwarf galaxies (BCDs) from 5000 square degrees in ... more We present a new selection of 358 blue compact dwarf galaxies (BCDs) from 5000 square degrees in the Dark Energy Survey, and the spectroscopic follow-up of a subsample of 68 objects. For the subsample of 34 objects with deep spectra, we measure the metallicity via the direct T e method using the auroral [O iii]λ 4363 emission line. These BCDs have an average oxygen abundance of 12+log(O/H) = 7.8, with stellar masses between 107 and 108 M ⊙ and specific star-formation rates between ∼10−9 and 10−7 yr−1. We compare the position of our BCDs with the mass–metallicity (M–Z) and luminosity–metallicity (L–Z) relation derived from the Local Volume Legacy sample. We find the scatter about the M–Z relation is smaller than the scatter about the L–Z relation. We identify a correlation between the offsets from the M–Z and L–Z relation that we suggest is due to the contribution of metal-poor inflows. Finally, we explore the validity of the mass–metallicity–SFR fundamental plane in the mass range probed by our galaxies. We find that BCDs with stellar masses smaller than 108 M ⊙ do not follow the extrapolation of the fundamental plane. This result suggests that mechanisms other than the balance between inflows and outflows may be at play in regulating the position of low-mass galaxies in the M–Z–SFR space.

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