update hedgehog

Author: AstroJacobLi

Jiaxuan_Li_CV.pdf

@@ -64,10 +64,13 @@
           Princeton, NJ 08544, USA<br>
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_includes/footer.html

@@ -10,9 +10,13 @@ permalink: /research/
 
 {% include image.html url="/images/Hedgehog.png" caption="Hedgehog: an isolated quiescent dwarf galaxy at 2.4 Mpc" width=250 align="right" %}
 
-In [Li et al. (2024b)](https://arxiv.org/abs/2406.00101), we discovered a new isolated quiescent dwarf galaxy at a distance of 2.4 Mpc! The galaxy, named Hedgehog, has no neighbors within 1 Mpc, and is 1.7 Mpc from its nearest galaxy group Centaurus A, making it one of the most isolated quiescent dwarfs at this stellar mass. The distance is measured using surface brightness fluctuations with both Legacy Surveys and deep Magellan/IMACS imaging data. It has a red optical color, early-type morphology, and shows no UV emission. This indicates that Hedgehog has an old stellar population and is quiescent in star formation. Compared with other quiescent dwarfs in the Local Group and Local Volume, Hedgehog appears smaller in size for its luminosity but is consistent with the mass--size relations. Hedgehog might be a backsplash galaxy from the Centaurus A group, but it could also have been quenched in the field by ram pressure stripping in the cosmic web, reionization, or internal processes such as supernova and stellar feedback. 
+In [Li et al. (2024b)](https://ui.adsabs.harvard.edu/abs/2024ApJ...975L..23L/abstract), we discovered a new isolated quiescent dwarf galaxy at a distance of 2.4 Mpc! The galaxy, named Hedgehog, has no neighbors within 1 Mpc, and is 1.7 Mpc from its nearest galaxy group Centaurus A, making it one of the most isolated quiescent dwarfs at this stellar mass. The distance is measured using surface brightness fluctuations with both Legacy Surveys and deep Magellan/IMACS imaging data. It has a red optical color, early-type morphology, and shows no UV emission. This indicates that Hedgehog has an old stellar population and is quiescent in star formation. Compared with other quiescent dwarfs in the Local Group and Local Volume, Hedgehog appears smaller in size for its luminosity but is consistent with the mass--size relations. Hedgehog might be a backsplash galaxy from the Centaurus A group, but it could also have been quenched in the field by ram pressure stripping in the cosmic web, reionization, or internal processes such as supernova and stellar feedback. 
 
-Please check out the 3-D environment of Hedgehog using this interactive plot: [Hedgehog Environment](https://astrojacobli.github.io/research/Hedgehog/). The YouTube video below also nicely introduces the discovery of Hedgehog (made by a YouTuber, not me!).
+Please check out the 3-D environment of Hedgehog using this interactive plot: [Hedgehog Environment](https://astrojacobli.github.io/research/Hedgehog/). 
+Also check out the AAS NOVA highlight on this discovery: [AAS NOVA](https://aasnova.org/2024/11/06/discovery-of-a-lonely-galactic-hedgehog/).
+<iframe src="https://aasnova.org/2024/11/06/discovery-of-a-lonely-galactic-hedgehog/" width="400" height="400"></iframe>
+
+The YouTube video below also nicely introduces the discovery of Hedgehog (made by a YouTuber, not me!).
 <center>
 <iframe width="560" height="315" src="https://www.youtube.com/embed/-cpowWCC2-M?si=Iq1k6w4bsfS7J_3a" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
 </center>