Yao-Yuan Mao
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yymao.bsky.social
Yao-Yuan Mao
@yymao.bsky.social
2K followers 94 following 11 posts
Astrophysicist at U of Utah studying small galaxies and dark matter using astronomical surveys and simulations || teacher || programmer || 茅耀元 || they/he || 🏳️‍🌈 || http://yymao.github.io || https://astro-outlist.github.io
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yymao.bsky.social
Wow that translation was really bad... Here's what it says:

Rich in calcium, protein
Filling contains > 12% imported cheese powder
100% imported cocoa powder
0 trans fat

Where did the iron and turmeric come from?? 🤦
November 10, 2024 at 5:58 AM
yymao.bsky.social
The SAGA saga: Putting the Milky Way’s ‘peculiarities’ into context
A trio of new studies suggests the Milky Way has a unique configuration of satellite galaxies surrounding it.
news.yale.edu
September 25, 2024 at 4:03 PM
yymao.bsky.social
Lovely! Hope it goes well!
April 24, 2024 at 10:04 PM
yymao.bsky.social
I was so lucky to be looped into SAGA Survey when I was still a second-year grad student. This amazing project is such an important part of my professional journey. It is so wonderful to work with this group of people. ❤️🧡💛💚💙💜

Now go check out these beautiful satellites in our papers and e-posters!!
Images of 378 SAGA satellites, sorted by r-band absolute magnitude within each of the 101 complete systems that have satellites. Four of the 101 systems have the same level of survey completeness but do not have any confirmed satellites. The images of host galaxies are not included. The colors of the frames are assigned by the number of satellites. Images are taken from DESI Imaging DR9 (Dey et al. 2019). The width and height of each image correspond to 40 arcsec.
April 24, 2024 at 9:16 PM
yymao.bsky.social
It is ONLY through the team effort that the SAGA Survey reaches this major milestone: the fearless Marla Geha and Risa Wechsler, and an amazing team: Nitya, Erik, Ben, Ethan, Richie, Yasmeen, Erin, Mia, and John!
Pictures of the SAGA team members: Marla Geha (Yale), Yao-Yuan Mao (U Utah), Risa Wechsler (Stanford), Nitya Kallivayalil (U Virginia), Erik Tollerud (STScI), Ben Weiner (U Arizona), Ethan Nadler (Carnegie/USC), Yunchong (Richie) Wang (Stanford), Yasmeen Asali (Yale), Erin Kado-Fong (Yale), Mia de los Reyes (Amherst College), John F. Wu (Stsci)
April 24, 2024 at 9:13 PM
yymao.bsky.social
Three SAGA Survey DR3 papers on arXiv:

3️⃣ 2404.14498 - survey overview & main results
4️⃣ 2404.14499 - satellites' star-forming properties
5️⃣ 2404.14500 - comparison with theoretical models

We also made "e-posters" that summarize the major points! Find the links on our website.
A screenshot of the SAGA Survey website that highlights the three SAGA DR3 papers: PAPER III: 101 SATELLITE SYSTEMS. SAGA DR3 includes 378 satellites identified across 101 MW-mass systems. The number of confirmed satellites per system ranges from 0 to 13, in the stellar mass range 10^6−10 solar masses. PAPER IV: STAR-FORMING PROPERTIES. SAGA satellites that have lower masses or are closer to the host galaxy are more likely to be quenched. This data enable use to study the environmental processes that suppress or quench star formation. PAPER V: COMPARING WITH MODELS. Using SAGA DR3 data to constrain an updated version of the Universe Machine model, we can directly test whether environmental quenching can be modeled by halo assembly histories.
April 24, 2024 at 9:07 PM
Reposted by Yao-Yuan Mao
jwuphysics.bsky.social
This is a really rich analysis and data set, made possible by Elise Darragh-Ford, @yymao.bsky.social, Risa Wechsler, @jegpeek.bsky.social, and many others!

You can now access some of the data from the the DESI Early Data Release. Stay tuned for even more!
Target Selection and Sample Characterization for the DESI LOW-Z Secondary Target Program
We introduce the DESI LOW-Z Secondary Target Survey, which combines the wide-area capabilities of the Dark Energy Spectroscopic Instrument (DESI) with an efficient, low-redshift target selection metho...
ui.adsabs.harvard.edu
September 21, 2023 at 5:14 PM