Juna A. Kollmeier
@thejunaverse.bsky.social
81 followers 0 following 33 posts
Astrophysicist
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thejunaverse.bsky.social
compute for compute.
social for social.
thejunaverse.bsky.social
compute for compute.
social for social.
thejunaverse.bsky.social
I love this so much!

I know you are probably too busy to read the Overview paper, but I do think you may enjoy the footnotes (or be annoyed by them) more than most!
Reposted by Juna A. Kollmeier
astroarxiv.bsky.social
Sloan Digital Sky Survey-V: Pioneering Panoptic Spectroscopy. Juna A. Kollmeier et. al. https://arxiv.org/abs/2507.06989
{FPS focal plane configuration {1.2 {1.2 {1.2
thejunaverse.bsky.social
Reminding you that what makes @sdssurveys.bsky.social data releases special (and particularly awesome) is that we don't just give you a ton of data that only a black-belt pro can use, but we give you tutorials and value-added catalogs and data that are actually USABLE not just public.
nialldeacon.com
With the release of DR19 of @sdssurveys.bsky.social we published a suite of tutorials to help astronomers use the data. I’d like to highlight two tutorials that are a little different and are targeted at introductory astronomy undergrad classes. 1/4
thejunaverse.bsky.social
@sdssurveys.bsky.social will be taking data through 2027 and is pioneering the spectroscopic panopticon!

Our @milkywaymapper.bsky.social *ALONE* will have >7 million stars total and >4 million with very high resolution spectra!

Join us!
sdssurveys.bsky.social
DR19 is the first big data release for SDSS-V, and the first time @milkywaymapper.bsky.social is featured: this mapper loves stars because stars are cool (or hot), but also because they can tell us how the Milky Way formed www.sdss.org/dr19/mwm/abo... #DR19
This image has in the background an artist impression of the Milky Way, face on, featuring its spiral arms. On top with contours we have the number density of target stars for Milky Way Mapper's Galactic Genesis program. The target density is higher closer to the Sun's location, and towards the Galactic Bulge. Image taken from https://www.sdss.org/dr19/mwm/programs/gg/, with image credit to Jon Bird for the target density contours, and Robert Hurt/NASA for the Milky Way image.
Reposted by Juna A. Kollmeier
sdssurveys.bsky.social
Yesterday we released our nineteenth data release into the wild: www.sdss.org/dr19, let’s now take a closer look on what is in this data release. #DR19
The figure is the banner from the SDSS website www.sdss.org. In the middle it has an image of the Milky Way, showing the bulge, disc and dust lanes. On the left we see an stylised version of the Hertzsprung Russel diagram, while on the right the image transforms into the cosmic web. This image showcases the range of science covered by the three mapper programs in SDSS-V.
Reposted by Juna A. Kollmeier
sdssurveys.bsky.social
Also, check out his amazing video visualising the @milkywaymapper.bsky.social survey on our YouTube Channel, by Szabolcs Mészáros of the MWM Survey Calibration working group: www.youtube.com/watch?v=H5w2...
Mapping the chemistry of our Galaxy with SDSS
YouTube video by Sloan Digital Sky Surveys
www.youtube.com
Reposted by Juna A. Kollmeier
localvolumemapper.bsky.social
🔭LVM is a robotic SDSS facility at Las Campanas Observatory in Chile’s Atacama Desert mapping the interstellar medium of the Milky Way and nearby galaxies✨
Get an eye on LVM with our image gallery: www.sdss.org/science/imag...
Reposted by Juna A. Kollmeier
localvolumemapper.bsky.social
The SDSS-V DR19 is now online at www.sdss.org 🎉
For the first time, LVM data is released.
Get a sneak peak into LVM data and download our amazing LVM tile of the Helix Nebula!✨

A tutorial showing how to access, read in, and work with the data is available here: www.sdss.org/dr19/lvm/tut... 💻
thejunaverse.bsky.social
www.youtube.com/watch?v=H5w2...

@sdssurveys.bsky.social DR19 stars in the @milkywaymapper.bsky.social!

There are a LOT more stars to come in SDSS-V, but this visualization by Szabolcs Mészáros, and Vanda Lendvai is quite beautiful.
Mapping the chemistry of our Galaxy with SDSS
YouTube video by Sloan Digital Sky Surveys
www.youtube.com
Reposted by Juna A. Kollmeier
localvolumemapper.bsky.social
Discover the ✨amazing✨ possibilities of LVM in this image of IC 434 in the Orion constellation, featuring the Horsehead Nebula emerging on the left (credit: ui.adsabs.harvard.edu/abs/2024A%26...).
Find more information here: sdss.org/robotic-tele...
Reposted by Juna A. Kollmeier
sdssurveys.bsky.social
Want to hear about how SDSS scientists are studying huge bubbles and shockwaves in the Milky Way and beyond?

Then come to our public talk next Wednesday evening at Haus der Astronomie in Heidelberg. The talk will be in German
hausderastronomie.bsky.social
Tom Herbst und Niv Drory zeigen euch am 4. Juni um 19 Uhr am HdA wie man die riesigen Blasen und Schockwellen, die von heißen Sternen in unserer Milchstraße und ihren Begleitgalaxien erzeugt werden kartiert. Tickets erhaltet ihr online unter ztix.de/hp/events/27... und an der Abendkasse 🔭
Ankündigung des Abendvortrags "Heiße Sterne, Schockwellen und riesige Blasen" mit Tom Herbst und Niv Drory am 4. Juni 2025 um 19:00 Uhr im Auditorium des Hauses der Astronomie, Königstuhl 17, 69117 Heidelberg. Eintritt 6 Euro. Im Hintergrund eine Falschfarbendarstellung der Gasblasen in der Großen Magellanschen Wolke in Braun- und Blautönen
thejunaverse.bsky.social
Wanna try your hand at Sky Mapping, but don't have your own telescope?

Play "Mapping the Cosmos" designed by @sdssurveys.bsky.social EPO Coordinator @nialldeacon.com!

Download for free here: voyages.sdss.org/hands-on-act... or contact Niall to get a copy!
thejunaverse.bsky.social
Data courtesy of @bbkogan.bsky.social and @nytimes.com. Would be great to see it updated with the version approved by the House of Representatives.
thejunaverse.bsky.social
That’s on-brand in so many ways! 😂
Reposted by Juna A. Kollmeier
sdssurveys.bsky.social
If you have a chance to see the incredible @emilyjogriffith.bsky.social give a Planetarium talk -- DO IT!!!!

She is one of our fearless leaders in SDSS working toward understanding our Milky Way!
emilyjogriffith.bsky.social
Excited to be giving a public planetarium talk at Embry Riddle University tonight! Love showing off the @sdssurveys.bsky.social data :) Sold out show!!
Reposted by Juna A. Kollmeier
sdssurveys.bsky.social
We love to see it Alex! Congratulations!

Because nucleosynthesis is still spectacular! #barbenheimerstar
alexji.bsky.social
Still not quite believing it but feeling very fortunate to be among the 2025 Sloan Research Fellow cohort!
sloanfoundation.bsky.social
🎉Congrats to the 126 early-career scientists who have been awarded a Sloan Research Fellowship this year! These exceptional scholars are drawn from 51 institutions across the US and Canada, and represent the next generation of groundbreaking researchers. sloan.org/fellowships/...