APOGEE Survey

Make it make sense ...

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

The awesome @zastronomerski giving a plenary now at AAS! @sdssurveys @APOGEEsurvey

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

@spacewsarah Love it. 😍🤩

It’s been an absolute pleasure to work with Lucey! She’s is on the job marked this fall, and you can check out all of her other cool projects here: mlucey.github.io

Madeline Lucey (PhD student at UT Austin) has a new paper out on the Milky Way's Galactic bar. We started this project at last year’s Big Apple Dynamics Summer School at @FlatironCCA. Paper link: arxiv.org/abs/2206.01798

Nods in yuuuuuuuuup

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.

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.

Looking forward to #AAS240 in a week! I'll be talking about parameter derived stellar distances and masses using data from @APOGEEsurvey

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

And then of course in surveys like @APOGEEsurvey we can actually measure the amount of mixing as a function of stellar mass and metallicity

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/2022arXiv2…

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

Whoever wrote the @sdssurveys @APOGEEsurvey DR17 caveats page is a poet. It bears a close read. sdss.org/dr17/irspec/ca…

Interesting article: Women Are Creating a New Culture for Astronomy scientificamerican.com/article/women-… #astronomy #Science #Space #Physics #WomenInScience #WomenInSTEM #NASA @sdssurveys @APOGEEsurvey @ESAGaia @ESO @EsoARC @galaxy_map @galahsurvey @CenterForAstro @TESSatMIT @nasa_jwst

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.

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 ...

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

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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