Speaker
Yi Zhang
(MPE)
Description
Studying the distribution and properties of hot gas around galaxies (hot CGM) helps constrain the galaxy evolution models but its observation is challenging. The first four SRG/eROSITA all-sky surveys (eRASS:4) allow us to detect the hot CGM by stacking a large sample of galaxies. In this talk, I will present the results we obtained about the difference of the hot CGM around star-forming and quiescent galaxies. We find either selected in stellar mass or halo mass, the star-forming galaxies do not host brighter stacked X-ray emission from the hot CGM than their quiescent counterparts at the same mass range. The result provides useful constraints on the extent of feedback's impacts as a mechanism for quenching star formation.
| Primary Theme | Hot gas to cold gas |
|---|---|
| Secondary Theme | Small to large scales |
| Presenter's Name | Yi Zhang |
| Presenter's Email Address | [email protected] |
| Keywords | CGM, X-ray, Galaxy quenching |
| Recording Permission | YES |
| Virtual Audience Permission | YES |
| Photography Permission | YES |
| If your talk is not accepted for a contributed talk, would you be interested in presenting a fireslide/lightning talk? | Yes |
| If your fireslide/lighting talk is not accepted, would you be interested in presenting a poster? | Yes |
Author
Yi Zhang
(MPE)
Co-authors
Andrea Merloni
(MPE)
Gabriele Ponti
(INAF)
Johan Comparat
(MPE)
External references
- 25070013
- aac9215c-7b2c-4b62-b92a-cbcfb1c2cd22
