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Tiffany Liou
University of California-San Diego
Space Telescope Science Institute Intern
Space Telescope Science Institute
Final presentation
Tiffany Liou - Final Presentation.pdf
Abstract:
In recent years, deep field surveys from the Hubble Space Telescope and MUSE on the Very Large Telescope have shed light on early faint galaxies. The second data release from MUSE HUDF (Hubble Ultra Deep Field) Survey, has a 1 arcmin diameter field of view and a depth of 141 hours, giving it higher spatial and redshift resolutions. The high sensitivity of MUSE allowed for the detection of 1308 Ly-α emitter galaxies (LAEs) (EW(Ly-α) > 20 Å) within redshifts 2.8 < z < 6.7 (Bacon et al. 2022). These LAEs provide good opportunities to study rest-UV properties in galaxies. We select a sample of 121 galaxies in redshift 2.803 < z < 3.973, 99 of which are LAEs. This redshift range is constrained by galaxies with a large redshift confidence (zconf ≥ 3) and signatures of Ly-α, CIV λ1548,1550, HeII λ1640, and CIII] λ1907,9. Using this sample, we study the correlation between properties such as stellar mass, gas-phase metallicity, star-formation rate, line strengths, and redshift. We compare these results with those found for lower redshift galaxies. The various trends found between properties within our galaxy sample, as well as their similarities and differences with lower redshift galaxies must be further investigated.
My name is Tiffany, a rising fourth year at UC San Diego, and I am beyond excited to be a Space Telescope Institute intern this summer. Over the past two years, I have been exploring different research interests at UCSD and Carnegie Observatories. I have previously reduced spectra from the IRTF Legacy Archives and I am currently trying to simulate dark matter subhalos in stellar streams.
Alongside being a resident star girl, I am the current president of SPS at UC San Diego. Our chapter strives to create a supportive physics community both inside and outside of UCSD. Most of the time, you can probably find me in the SPS room feasting on some kind of caffeine while questioning why my simulations make my computer sound like an airport.
Outside of academics, I enjoy adding clothes to my online shopping cart (never purchasing them though), watching movies, and learning new songs on the guitar. You can probably also catch me crouched on the ground to take pictures of flowers.
Once again, I am super stoked to be an SPS Intern at STScI and I cannot wait to learn more about the cosmos!