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Mapping Stars in the Galaxy as part of the Sloan Digital Sky Survey @sdssurveys #ScienceForAll

Apache Point Obs., NM, USA
Joined July 2014
Photo by APOGEE Survey (@APOGEEsurvey)Photo by APOGEE Survey (@APOGEEsurvey)Photo by APOGEE Survey (@APOGEEsurvey)Photo by APOGEE Survey (@APOGEEsurvey)Photo by APOGEE Survey (@APOGEEsurvey)Photo by APOGEE Survey (@APOGEEsurvey)Photo by APOGEE Survey (@APOGEEsurvey)Photo by APOGEE Survey (@APOGEEsurvey)Photo by APOGEE Survey (@APOGEEsurvey)Photo by APOGEE Survey (@APOGEEsurvey)
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MasterClass by @zastronomerski on the Milky Way at #AAS240. A mind-blowingly rich data set telling us about the idiosyncrasies of our the #galaxy we call home. 🤯👏 @sdssurveys @APOGEEsurvey
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The awesome @zastronomerski giving a plenary now at AAS! @sdssurveys @APOGEEsurvey
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APOGEE Survey retweeted
APOGEE in Fire Mock Catalogs from 3 Latte Galaxies go live at #AAS240. 50+ Tb of simulated Milky Way goodness in a server-side platform. 🤓 Arik from IDIES will be on hand with cool 😎 notebooks to play around that show server-side awesome. @sdssurveys @APOGEEsurvey
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Nods in yuuuuuuuuup
Replying to @spacewsarah
We also find that the measured inner Galaxy orbital structure from APOGEE/Gaia data is very potential dependent, and we caution against drawing strong conclusions about the inner Galaxy from orbits without performing a thorough analysis of the assumed potentials.
Lucey presents and tests a novel method to dynamically estimate the Milky Way’s bar length and pattern speed directly from orbit integration of @APOGEEsurvey data and @ESAGaia data. She finds a dynamical bar length of ~3.5 kpc and pattern speed of 39 km/s/kpc.
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APOGEE Survey retweeted
Conveniently, with optical spectroscopy from clusters and @APOGEEsurvey, we can now infer empirically the location of the red giant branch bump (purple), and infer where (at what logg) the lithium (green) and [C/N] (blue) drop due to extra mixing at a particular metallicity.
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APOGEE Survey retweeted
I'm excited about my first 'single-author' paper, now accepted for publication in ApJ. I study the characteristics of the "Pontus" merger of the Milky Way using #GaiaEDR3 and @APOGEEsurvey data. arxiv.org/abs/2204.09058 @ESAGaia @mpi_astro @AvHStiftung @IAU_org @The_Gruber_Fdtn
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APOGEE Survey retweeted
And then of course in surveys like @APOGEEsurvey we can actually measure the amount of mixing as a function of stellar mass and metallicity
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Paper day! In this paper we examine the chemical compositions of halo substructures identified in recent years with the wealth of large-scale stellar surveys (Gaia, APOGEE, H3, LAMOST) in order to further understand their nature. A thread 1/11 Link: ui.adsabs.harvard.edu/abs/20…
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Check out the paper for the full deets! Many thanks to every co-author and the @APOGEEsurvey @ESAGaia surveys for delivering the awesome data that enabled this study!! 11/11
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APOGEE Survey retweeted
Whoever wrote the @sdssurveys @APOGEEsurvey DR17 caveats page is a poet. It bears a close read. sdss.org/dr17/irspec/caveats…
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APOGEE Survey retweeted
Where I learned that 50% of sun-like stars are binary stars. Very cool program and grateful to @erg28613, @cscscience, & @APOGEEsurvey for the support in organizing it.
TOMORROW 6:15pm! Join Dr. John Wilson of the University of Virginia & explore what Astronomers call "Galactic Archaeology" by studying the history of the Milky Way! Discover the meaning of A.P.O.G.E.E. at this FREE Science After Dark event! Learn more ➡️ ow.ly/cVIL50Io9uz
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I've a new accepted first author paper that I titled: "Galactic ArchaeoLogIcaL ExcavatiOns (GALILEO) I. An updated census of @APOGEEsurvey N-rich Giants Across the Milky Way" - We also identified two possible Hypervelocity N-rich star (HVNS) candidates with StarHorse, but ...
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APOGEE Survey retweeted
Looking at how rotation evolves with time is hard in this regime, but you can see it if you are careful especially with the help of spectroscopy like @APOGEEsurvey. We actually ended up using vsini+ Rgaia => P/sini, validated against the rotation periods we could measure for this
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APOGEE Survey retweeted
In case you missed it last week @ellantonia_ had a lovely paper out on surface rotation in stars around the Kraft Break using TESS, Kepler and APOGEE. Things you should know include: Detecting long periods (>13 days) in TESS is very hard, even if you know where to look
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Looking forward to talk this evening under the big dinosaur at @mfnberlin about Galactic Archaeology with a Billion stars @ESAGaia @APOGEEsurvey Wissenschaft im Sauriersaal: Galaktische Archäologie – Ausgrabungen mit einer Milliarde Sternen museumfuernaturkunde.berlin/… via @mfnberlin
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