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UID:7f7476202905f2535050e6acc2128ba0
CATEGORIES:Guest Speaker Night
CREATED:20230401T132535
SUMMARY:Guest Speaker - Dr Nandini Sahu - UNSW
LOCATION:of event: Green Point Observatory
DESCRIPTION:<h2>From Scaling Black Holes to Measuring Dark Matter in Galaxies</h2><p><i
 mg src="images/articles/Nandini_Sahu_BH-Galaxy_tn.jpg" alt="Nandini Sahu BH
  Galaxy image" width="596" height="210" /></p><p>The supermassive black hol
 e residing at the galaxy center is expected to co-evolve with the host gala
 xy. An evidence of this co-evolution is the relation observed between super
 massive black hole mass and the host galaxy properties. <br />I will talk a
 bout the latest supermassive black hole scaling relations that we discovere
 d during my Ph.D. Given our telescopes have a limited resolution, these sca
 ling relations are used to estimate the mass of the black holes at the cent
 ers of distant galaxies. <br />I will also talk about a naturally occurring
  phenomenon called 'gravitational lensing', which has become a powerful too
 l for astronomers to measure the 'dark matter' which is invisible but has a
  mass and constitutes most of the matter in the Universe. I am using the ob
 servations of 'gravitational lensing' to measure dark matter in galaxies an
 d trying to understand their role in shaping the galaxy forms that we obser
 ve.</p><p>&nbsp;</p><p><img src="images/articles/Nandini_Sahu_2023_tn.jpg" 
 alt="Nandini Sahu image" width="267" height="400" style="margin-right: 10px
 ; float: left;" /></p><h2>Dr Nandini Sahu</h2><p>I am an ASTRO3D Postdoctor
 al Fellow at the University of New South Wales (UNSW), Sydney. I fall in th
 e category of an observational extragalactic astrophysicist. Currently, I a
 m studying gravitational lenses and lensed galaxies from the early Universe
  to further develop our understanding of galaxy formation and evolution. I 
 did my Ph.D. from the Swinburne University of Technology, Melbourne (awarde
 d in April 2022). My Ph.D. thesis titled "Morphology-dependent Black Hole M
 ass Scaling Relations" presents the latest developments and new correlation
 s between supermassive black hole mass and host galaxy properties. I am ori
 ginally from India, born and brought up in a small town near Varanasi. Befo
 re coming to Australia for my Ph.D. in 2017, I completed my Bachelors's and
  Masters's degrees in Engineering Physics at the Indian Institute of Techno
 logy (BHU) Varanasi.</p><p>&nbsp;</p>
X-ALT-DESC;FMTTYPE=text/html:<h2>From Scaling Black Holes to Measuring Dark Matter in Galaxies</h2><p><i
 mg src="https://www.sasi.net.au/images/articles/Nandini_Sahu_BH-Galaxy_tn.j
 pg" alt="Nandini Sahu BH Galaxy image" width="596" height="210" /></p><p>Th
 e supermassive black hole residing at the galaxy center is expected to co-e
 volve with the host galaxy. An evidence of this co-evolution is the relatio
 n observed between supermassive black hole mass and the host galaxy propert
 ies. <br />I will talk about the latest supermassive black hole scaling rel
 ations that we discovered during my Ph.D. Given our telescopes have a limit
 ed resolution, these scaling relations are used to estimate the mass of the
  black holes at the centers of distant galaxies. <br />I will also talk abo
 ut a naturally occurring phenomenon called 'gravitational lensing', which h
 as become a powerful tool for astronomers to measure the 'dark matter' whic
 h is invisible but has a mass and constitutes most of the matter in the Uni
 verse. I am using the observations of 'gravitational lensing' to measure da
 rk matter in galaxies and trying to understand their role in shaping the ga
 laxy forms that we observe.</p><p>&nbsp;</p><p><img src="https://www.sasi.n
 et.au/images/articles/Nandini_Sahu_2023_tn.jpg" alt="Nandini Sahu image" wi
 dth="267" height="400" style="margin-right: 10px; float: left;" /></p><h2>D
 r Nandini Sahu</h2><p>I am an ASTRO3D Postdoctoral Fellow at the University
  of New South Wales (UNSW), Sydney. I fall in the category of an observatio
 nal extragalactic astrophysicist. Currently, I am studying gravitational le
 nses and lensed galaxies from the early Universe to further develop our und
 erstanding of galaxy formation and evolution. I did my Ph.D. from the Swinb
 urne University of Technology, Melbourne (awarded in April 2022). My Ph.D. 
 thesis titled "Morphology-dependent Black Hole Mass Scaling Relations" pres
 ents the latest developments and new correlations between supermassive blac
 k hole mass and host galaxy properties. I am originally from India, born an
 d brought up in a small town near Varanasi. Before coming to Australia for 
 my Ph.D. in 2017, I completed my Bachelors's and Masters's degrees in Engin
 eering Physics at the Indian Institute of Technology (BHU) Varanasi.</p><p>
 &nbsp;</p>
DTSTAMP:20260616T150516
DTSTART;TZID=Australia/Sydney:20230803T193000
DTEND;TZID=Australia/Sydney:20230803T213000
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