Michael R. Blanton
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View article: Procedures for Constraining Robotic Fiber Positioning for Highly Multiplexed Spectroscopic Surveys: The Case of FPS for SDSS-V
Procedures for Constraining Robotic Fiber Positioning for Highly Multiplexed Spectroscopic Surveys: The Case of FPS for SDSS-V Open
One crucial aspect of planning any large scale astronomical survey is constructing an observing strategy that maximizes reduced data quality. This is especially important for surveys that are rather heterogeneous and broad-ranging in their…
View article: A Galactic Self-portrait: Density Structure and Integrated Properties of the Milky Way Disk
A Galactic Self-portrait: Density Structure and Integrated Properties of the Milky Way Disk Open
The evolutionary history of the Milky Way disk is imprinted in the ages, positions, and chemical compositions of individual stars. In this study, we derive the intrinsic density distribution of different stellar populations using the final…
View article: Sloan Digital Sky Survey-V: Pioneering Panoptic Spectroscopy
Sloan Digital Sky Survey-V: Pioneering Panoptic Spectroscopy Open
The Sloan Digital Sky Survey-V (SDSS-V) is pioneering panoptic spectroscopy: it is the first all-sky, multi-epoch, optical-to-infrared spectroscopic survey. SDSS-V is mapping the sky with multi-object spectroscopy (MOS) at telescopes in bo…
View article: The Nineteenth Data Release of the Sloan Digital Sky Survey
The Nineteenth Data Release of the Sloan Digital Sky Survey Open
Mapping the local and distant Universe is key to our understanding of it. For decades, the Sloan Digital Sky Survey (SDSS) has made a concerted effort to map millions of celestial objects to constrain the physical processes that govern our…
View article: Procedures for Constraining Robotic Fiber Positioning for Highly Multiplexed Spectroscopic Surveys: The Case of FPS for SDSS-V
Procedures for Constraining Robotic Fiber Positioning for Highly Multiplexed Spectroscopic Surveys: The Case of FPS for SDSS-V Open
One crucial aspect of planning any large scale astronomical survey is constructing an observing strategy that maximizes reduced data quality. This is especially important for surveys that are rather heterogeneous and broad-ranging in their…
View article: robostrategy: Field and Target Assignment Optimization in the Sloan Digital Sky Survey V
robostrategy: Field and Target Assignment Optimization in the Sloan Digital Sky Survey V Open
We present an algorithmic method for efficiently planning a long-term, large-scale multi-object spectroscopy program. The Sloan Digital Sky Survey V (SDSS-V) Focal Plane System performs multi-object spectroscopy using 500 robotic positione…
View article: The eROSITA Final Equatorial Depth Survey (eFEDS): SDSS spectroscopic observations of X-ray sources
The eROSITA Final Equatorial Depth Survey (eFEDS): SDSS spectroscopic observations of X-ray sources Open
We present one of the largest uniform optical spectroscopic surveys of X-ray selected sources to date that were observed as a pilot study for the Black Hole Mapper (BHM) survey. The BHM program of the Sloan Digital Sky Survey (SDSS)-V is d…
View article: The eROSITA Final Equatorial Depth Survey (eFEDS)
The eROSITA Final Equatorial Depth Survey (eFEDS) Open
We present one of the largest uniform optical spectroscopic surveys of X-ray selected sources to date that were observed as a pilot study for the Black Hole Mapper (BHM) survey. The BHM program of the Sloan Digital Sky Survey (SDSS)-V is d…
View article: Improving Radial Velocities by Marginalizing over Stars and Sky: Achieving 30 m s<sup>−1</sup> RV Precision for APOGEE in the Plate Era
Improving Radial Velocities by Marginalizing over Stars and Sky: Achieving 30 m s<sup>−1</sup> RV Precision for APOGEE in the Plate Era Open
The radial velocity catalog from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) is unique in its simultaneously large volume and high precision as a result of its decade-long survey duration, multiplexing (600 fibers),…
View article: Radio Active Galactic Nuclei Activity in Low Redshift Galaxies Is Not Directly Related to Star Formation Rates
Radio Active Galactic Nuclei Activity in Low Redshift Galaxies Is Not Directly Related to Star Formation Rates Open
We examine the demographics of radio-emitting active galactic nuclei (AGN) in the local Universe as a function of host galaxy properties, most notably both stellar mass ( M ⋆ ) and star formation rate (SFR). Radio AGN activity is theoretic…
View article: Mid-infrared Variability in Nearby Galaxies from the MaNGA Sample
Mid-infrared Variability in Nearby Galaxies from the MaNGA Sample Open
We use mid-infrared variability in galaxies to search for active galactic nuclei (AGN) in the local universe. We use a sample of 10,220 galaxies from the Mapping Nearby Galaxies at Apache Point Observatory survey, part of the Sloan Digital…
View article: A Dust Attenuation Model Inspired by the NIHAO-SKIRT-Catalog
A Dust Attenuation Model Inspired by the NIHAO-SKIRT-Catalog Open
We use simulated attenuation curves from the NIHAO-SKIRT-Catalog to test the flexibility of commonly used dust attenuation models in the face of the variations expected from realistic star–dust geometries. Motivated by lack of flexibility …
View article: Testing the Accuracy of Spectral Energy Distribution Modeling Techniques Using the NIHAO-SKIRT-Catalog
Testing the Accuracy of Spectral Energy Distribution Modeling Techniques Using the NIHAO-SKIRT-Catalog Open
We use simulated galaxy observations from the NIHAO-SKIRT-Catalog to test the accuracy of spectral energy distribution (SED) modeling techniques. SED modeling is an essential tool for inferring star formation histories from nearby galaxy o…
View article: Improving Radial Velocities by Marginalizing over Stars and Sky: Achieving 30 m/s RV Precision for APOGEE in the Plate Era
Improving Radial Velocities by Marginalizing over Stars and Sky: Achieving 30 m/s RV Precision for APOGEE in the Plate Era Open
The radial velocity catalog from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) is unique in its simultaneously large volume and high precision as a result of its decade-long survey duration, multiplexing (600 fibers),…
View article: Mid-Infrared Variability in Nearby Galaxies from the MaNGA Sample
Mid-Infrared Variability in Nearby Galaxies from the MaNGA Sample Open
We use mid-infrared variability in galaxies to search for active galactic nuclei (AGN) in the local universe. We use a sample of 10,220 galaxies from the Mapping Nearby Galaxies at APO (MaNGA) survey, part of the Sloan Digital Sky Survey (…
View article: The Sloan Digital Sky Survey Reverberation Mapping Project: Key Results
The Sloan Digital Sky Survey Reverberation Mapping Project: Key Results Open
We present the final data from the Sloan Digital Sky Survey (SDSS) Reverberation Mapping (RM) project, a precursor to the SDSS-V Black Hole Mapper RM program. This data set includes 11 yr photometric and 7 yr spectroscopic light curves for…
View article: Radio AGN Activity in Low Redshift Galaxies is Not Directly Related to Star Formation Rates
Radio AGN Activity in Low Redshift Galaxies is Not Directly Related to Star Formation Rates Open
We examine the demographics of radio-emitting active galactic nuclei (AGN) in the local universe as a function of host galaxy properties, most notably both stellar mass and star formation rate. Radio AGN activity is theoretically implicate…
View article: Quaia, the Gaia-unWISE Quasar Catalog: An All-sky Spectroscopic Quasar Sample
Quaia, the Gaia-unWISE Quasar Catalog: An All-sky Spectroscopic Quasar Sample Open
We present a new, all-sky quasar catalog, Quaia, that samples the largest comoving volume of any existing spectroscopic quasar sample. The catalog draws on the 6,649,162 quasar candidates identified by the Gaia mission that have redshift e…
View article: A dust attenuation model inspired by the NIHAO-SKIRT-Catalog
A dust attenuation model inspired by the NIHAO-SKIRT-Catalog Open
We use simulated attenuation curves from the NIHAO-SKIRT-Catalog to test the flexibility of commonly used dust attenuation models in the face of the variations expected from realistic star-dust geometries. Motivated by lack of flexibility …
View article: Erratum: “Panchromatic Simulated Galaxy Observations from the NIHAO Project” (2023, ApJ, 957, 7)
Erratum: “Panchromatic Simulated Galaxy Observations from the NIHAO Project” (2023, ApJ, 957, 7) Open
View article: Quaia: The Gaia-unWISE Quasar Catalog
Quaia: The Gaia-unWISE Quasar Catalog Open
Quaia is a quasar catalog constructed from the Gaia DR3 quasar candidates sample and unWISE infrared data. It is the largest-volume spectroscopic quasar catalog to date. The catalog is described in an associated publication, available at h…
View article: Quaia: The Gaia-unWISE Quasar Catalog
Quaia: The Gaia-unWISE Quasar Catalog Open
Quaia is a quasar catalog constructed from the Gaia DR3 quasar candidates sample and unWISE infrared data. It is the largest-volume spectroscopic quasar catalog to date. The catalog is described in an associated publication, available at h…
View article: SDSS-IV from 2014 to 2016: A Detailed Demographic Comparison over Three Years
SDSS-IV from 2014 to 2016: A Detailed Demographic Comparison over Three Years Open
The Sloan Digital Sky Survey (SDSS) is one of the largest international astronomy organizations. We present demographic data based on surveys of its members from 2014, 2015 and 2016, during the fourth phase of SDSS (SDSS-IV). We find about…
View article: The Future of Astronomical Data Infrastructure: Meeting Report
The Future of Astronomical Data Infrastructure: Meeting Report Open
The astronomical community is grappling with the increasing volume and complexity of data produced by modern telescopes, due to difficulties in reducing, accessing, analyzing, and combining archives of data. To address this challenge, we p…
View article: Pathways to Discovery in Astronomy and Astrophysics for the 2020s
Pathways to Discovery in Astronomy and Astrophysics for the 2020s Open
We live in an extraordinary period of discovery in astronomy and astrophysics. Six Nobel Prizes have been awarded over the past decade alone for discoveries based on astronomical data (dark energy, gravitational waves, neutrino oscillation…
View article: Panchromatic Simulated Galaxy Observations from the NIHAO Project
Panchromatic Simulated Galaxy Observations from the NIHAO Project Open
We present simulated galaxy spectral energy distributions (SEDs) from the far-ultraviolet (FUV) through the far-infrared (FIR), created using hydrodynamic simulations and radiative transfer calculations, suitable for the validation of SED …
View article: A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE
A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE Open
We present new maps of the Milky Way disk showing the distribution of metallicity ([Fe/H]), α -element abundances ([Mg/Fe]), and stellar age, using a sample of 66,496 red giant stars from the final data release (DR17) of the Apache Point O…
View article: The Eighteenth Data Release of the Sloan Digital Sky Surveys: Targeting and First Spectra from SDSS-V
The Eighteenth Data Release of the Sloan Digital Sky Surveys: Targeting and First Spectra from SDSS-V Open
The eighteenth data release (DR18) of the Sloan Digital Sky Survey (SDSS) is the first one for SDSS-V, the fifth generation of the survey. SDSS-V comprises three primary scientific programs or “Mappers”: the Milky Way Mapper (MWM), the Bla…
View article: A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE
A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE Open
We present new maps of the Milky Way disk showing the distribution of metallicity ([Fe/H]), $α$-element abundances ([Mg/Fe]), and stellar age, using a sample of 66,496 red giant stars from the final data release (DR17) of the Apache Point …
View article: NIHAO-SKIRT-Catalog
NIHAO-SKIRT-Catalog Open
Data product containing resolved photometry and spatially integrated spectra for a sample of 65 NIHAO galaxies, each from 10 different viewing angles. The two python analysis files demonstrate how to access and use the data files. README.m…