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Astrophsyics

Diffuse Gas in Cosmic Ecosystems Science Interest Group

The Link Between Halo Gas and Dwarf Galaxy Evolution




September 28, 2023 – 4pm Eastern Time / 1 PM Pacific Time
Mary Putman (Columbia University)

There is a distinct lack of gas-rich/star forming dwarf galaxies within the halos of spiral galaxies. This indicates spiral galaxy halos play an important role in quenching the dwarf satellites. Diffuse gas in the halo is commonly thought to play a role via ram pressure stripping. I will discuss the evidence for dwarf satellite quenching by the circumgalactic medium based on dwarf galaxy observations in the local universe.



NASA’s First Asteroid Sample
Has Landed,
Now Secure in Clean Room

Congratulations OSIRIS-REx! After years of anticipation and hard work by NASA’s OSIRIS-REx team, a capsule of rocks and dust collected from asteroid Bennu finally is on Earth. It landed at 8:52 a.m. MDT (10:52 a.m. EDT) on Sunday. Read more.


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2 October 2023
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29 September 2023
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29 September 2023
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29 September 2023
Community Input for the Cosmic Origins Precursor Science Gaps | November, 17th 2023 »  Details.
22 September 2023
Diffuse Gas in Cosmic Ecosystems Science Interest Group | September 28, 2023 – 4pm EST / 1 PM PST »  Details.
22 September 2023
Windows on the Universe: Establishing the Infrastructure for a Collaborative Multi-messenger Ecosystem | October 16 – 18, Tucson, AZ »  Details.
22 September 2023
Galaxies Science Interest Group (Galaxies SIG) Seminar | Tuesday October 3rd, 2023 at 1pm ET »  Details.
22 September 2023
NASA’s Webb Telescope Inspires ARTECHOUSE Exhibit, Public Art »  Details.

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