Jennifer Sobeck

Title: Associate Scientist

Room Number: KS307C

Email (@ipac.caltech.edu): jsobeck

Research Interests: Stellar Populations in the Milky Way and Local Group; Stellar Astrophysics

Activities: Nancy Grace Roman Space Telescope

92 Publications

• An Atomic Physics Viewpoint of Stellar Abundance Analysis | First Author
• Atomic transition probabilities of Ce I from Fourier transform spectra
• Empirically Derived Integrated Stellar Yields of Fe-Peak Elements
• Consistent Iron Abundances Derived from Neutral and Singly Ionized Iron Lines in Ultraviolet and Optical Spectra of Six Warm Metal-poor Stars
• Hubble Space Telescope Near-ultraviolet Spectroscopy of the Bright CEMP-no Star BD+44°493
• Manganese Abundances in Cluster and Field Stars | First Author
• Improved Laboratory Transition Probabilities for Er II and Application to the Erbium Abundances of the Sun and Five r-Process-rich, Metal-poor Stars
• Hubble Space Telescope Near-Ultraviolet Spectroscopy of Bright CEMP-s Stars
• Timing the Evolution of the Galactic Disk with NGC 6791: An Open Cluster with Peculiar High-α Chemistry as Seen by APOGEE
• The Origin of the 300 km s<SUP>-1</SUP> Stream near Segue 1
• Europium, Samarium, and Neodymium Isotopic Fractions in Metal-Poor Stars
• The Hercules stream as seen by APOGEE-2 South
• Deep SDSS optical spectroscopy of distant halo stars. I. Atmospheric parameters and stellar metallicity distribution
• Ba and Eu abundances in M 15 giant stars
• New Detections of Arsenic, Selenium, and Other Heavy Elements in Two Metal-poor Stars
• Detection of the Second r-process Peak Element Tellurium in Metal-poor Stars
• Detailed Iron-peak Element Abundances in Three Very Metal-poor Stars
• APOGEE Kinematics. I. Overview of the Kinematics of the Galactic Bulge as Mapped By APOGEE
• The Bulge Metallicity Distribution from the APOGEE Survey
• Improved log(gf ) Values of Selected Lines in Mn I and Mn II for Abundance Determinations in FGK Dwarfs and Giants
• Sodium and Oxygen Abundances in the Open Cluster NGC 6791 from APOGEE H-band Spectroscopy
• H-band discovery of additional second-generation stars in the Galactic bulge globular cluster NGC 6522 as observed by APOGEE and Gaia
• Discovery of a Metal-poor Field Giant with a Globular Cluster Second-generation Abundance Pattern
• Chemical Abundances in a Sample of Red Giants in the Open Cluster NGC 2420 from APOGEE
• Chemodynamically Characterizing the Jhelum Stellar Stream with APOGEE-2
• Improved Laboratory Transition Probabilities for Neutral Chromium and Redetermination of the Chromium Abundance for the Sun and Three Stars | First Author
• Chemical Abundances of M-dwarfs from the APOGEE Survey. I. The Exoplanet Hosting Stars Kepler-138 and Kepler-186
• Identifying Sagittarius Stream Stars by Their APOGEE Chemical Abundance Signatures
• Atypical Mg-poor Milky Way Field Stars with Globular Cluster Second-generation-like Chemical Patterns
• The SEGUE K Giant Survey. II. A Catalog of Distance Determinations for the SEGUE K Giants in the Galactic Halo
• New Hubble Space Telescope Observations of Heavy Elements in Four Metal-Poor Stars
• Testing the Asteroseismic Mass Scale Using Metal-poor Stars Characterized with APOGEE and Kepler
• APOGEE DR14/DR15 Abundances in the Inner Milky Way
• Chemical Abundances of Main-sequence, Turnoff, Subgiant, and Red Giant Stars from APOGEE Spectra. I. Signatures of Diffusion in the Open Cluster M67
• APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy
• Stellar Characterization of M Dwarfs from the APOGEE Survey: A Calibrator Sample for M-dwarf Metallicities
• Orbital Torus Imaging: Using Element Abundances to Map Orbits and Mass in the Milky Way
• Carbon-enhanced Metal-poor Stars in SDSS/SEGUE. I. Carbon Abundance Estimation and Frequency of CEMP Stars
• Adding the s-Process Element Cerium to the APOGEE Survey: Identification and Characterization of Ce II Lines in the H-band Spectral Window
• APOGEE Data Releases 13 and 14: Stellar Parameter and Abundance Comparisons with Independent Analyses
• Exploring the Stellar Age Distribution of the Milky Way Bulge Using APOGEE
• Exploring Anticorrelations and Light Element Variations in Northern Globular Clusters Observed by the APOGEE Survey
• Chemical Abundances of Main-sequence, Turnoff, Subgiant, and Red Giant Stars from APOGEE Spectra. II. Atomic Diffusion in M67 Stars
• Constraining Metallicity-dependent Mixing and Extra Mixing Using [C/N] in Alpha-rich Field Giants
• Metallicity and α-Element Abundance Gradients along the Sagittarius Stream as Seen by APOGEE
• Tracing Chemical Evolution over the Extent of the Milky Way's Disk with APOGEE Red Clump Stars
• The Abundances of Neutron-capture Species in the Very Metal-poor Globular Cluster M15: A Uniform Analysis of Red Giant Branch and Red Horizontal Branch Stars | First Author
• CAPOS: The bulge Cluster APOgee Survey. I. Overview and initial ASPCAP results
• Disentangling the Galactic Halo with APOGEE. I. Chemical and Kinematical Investigation of Distinct Metal-poor Populations
• The SDSS-III APOGEE Spectral Line List for H-band Spectroscopy
• Chemical Cartography with APOGEE: Multi-element Abundance Ratios
• Stellar Multiplicity Meets Stellar Evolution and Metallicity: The APOGEE View
• Target Selection for the SDSS-IV APOGEE-2 Survey
• Close Binary Companions to APOGEE DR16 Stars: 20,000 Binary-star Systems Across the Color-Magnitude Diagram
• Chemical tagging with APOGEE: discovery of a large population of N-rich stars in the inner Galaxy
• The Apache Point Observatory Galactic Evolution Experiment (APOGEE) Spectrographs
• APOGEE Data Releases 13 and 14: Data and Analysis
• SDSS-IV MaStar: A Large and Comprehensive Empirical Stellar Spectral Library—First Release
• The Open Cluster Chemical Abundances and Mapping Survey. IV. Abundances for 128 Open Clusters Using SDSS/APOGEE DR16
• The Data Reduction Pipeline for the Apache Point Observatory Galactic Evolution Experiment
• Abundances, Stellar Parameters, and Spectra from the SDSS-III/APOGEE Survey
• The Lazy Giants: APOGEE Abundances Reveal Low Star Formation Efficiencies in the Magellanic Clouds
• Gaia FGK benchmark stars: Metallicity
• Homogeneous analysis of globular clusters from the APOGEE survey with the BACCHUS code - II. The Southern clusters and overview
• Dynamical heating across the Milky Way disc using APOGEE and Gaia
• From the bulge to the outer disc: StarHorse stellar parameters, distances, and extinctions for stars in APOGEE DR16 and other spectroscopic surveys
• The Second APOKASC Catalog: The Empirical Approach
• Binary Companions of Evolved Stars in APOGEE DR14: Search Method and Catalog of ∼5000 Companions
• The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory
• ASPCAP: The APOGEE Stellar Parameter and Chemical Abundances Pipeline
• The Tenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Apache Point Observatory Galactic Evolution Experiment
• The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point Observatory Galactic Evolution Experiment
• The Eighth Data Release of the Sloan Digital Sky Survey: First Data from SDSS-III
• APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South
• The Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey
• Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe
• The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
• Rubin Observatory LSST Stars Milky Way and Local Volume Star Clusters Roadmap
• The Eighteenth Data Release of the Sloan Digital Sky Surveys: Targeting and First Spectra from SDSS-V
• Atomic Transition Probabilities of Neutral Calcium
• Abundance analysis of APOGEE spectra for 58 metal-poor stars from the bulge spheroid
• SEGUE-2: Old Milky Way Stars Near and Far
• Final Targeting Strategy for the SDSS-IV APOGEE-2S Survey
• Final Targeting Strategy for the Sloan Digital Sky Survey IV Apache Point Observatory Galactic Evolution Experiment 2 North Survey
• The APOGEE Data Release 16 Spectral Line List
• Stellar Characterization and Radius Inflation of Hyades M-dwarf Stars from the APOGEE Survey
• Chemical Cartography with APOGEE: Mapping Disk Populations with a 2-process Model and Residual Abundances
• BACCHUS Analysis of Weak Lines in APOGEE Spectra (BAWLAS)
• The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library
• APOGEE Chemical Abundance Patterns of the Massive Milky Way Satellites
• The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra
• The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar, and APOGEE-2 Data