| Name: | Himanshu Bhisikar |
| Affiliation: | Indian Institute of Astrophysics, Bengaluru |
| Conference ID : | ASI2024_76 |
| Title : | The search for massive relic galaxies in the local universe |
| Authors : | Himanshu Bhisikar, Smitha Subramanian |
| Authors Affiliation: | 1. Indian Institute of Astrophysics, Bengaluru
2. Indian Institute of Astrophysics, Bengaluru
|
| Mode of Presentation: | Poster |
| Abstract Category : | Galaxies and Cosmology |
| Abstract : | Massive, quiescent high-z compact galaxies, known as red nuggets, are traditionally considered to be the progenitors of the present-day massive and large elliptical galaxies found in the local Universe. Such galaxies are usually formed by building their 3D envelopes through gas-poor minor mergers. Studies also suggest that some fraction of red nuggets can build 2D disks around them by accreting gas-rich smaller galaxies and consequently become present-day massive early-type spiral galaxies. However due to the stochastic nature of these mergers, it is also predicted that some of them could have remained undisturbed till the present day. A study of local analogs of high-z red nuggets will provide important insights into the formation and evolution of galaxies at high redshift. In this study, we present a list of candidate relic galaxies in the local universe using data from the Sloan Digital Sky Survey (SDSS). We present their stellar properties taken from the GSWLC and MPAJHU catalogs. We also present a study on the stellar population properties of these galaxies by performing spectral analysis of the SDSS spectra of these galaxies using FIREFLY. |
