Ewch i’r prif gynnwys
Subhajit Sarkar

Dr Subhajit Sarkar

Lecturer
Astronomy Group
Astronomy Instrumentation Group
Cardiff Hub for Astrophysics Research and Technology

Ysgol Ffiseg a Seryddiaeth

Email
SarkarS3@caerdydd.ac.uk
Campuses
Adeiladau'r Frenhines - Adeilad y Gogledd, Ystafell N/3.22, 5 The Parade, Heol Casnewydd, Caerdydd, CF24 3AA
Users
Ar gael fel goruchwyliwr ôl-raddedig

Trosolwyg

I’m a university lecturer and astrophysicist working in the field of extra-solar planets.  I am involved in the development of new missions and observatories to characterise the atmospheres of exoplanets, in particular the ESA Ariel mission, as well as Twinkle and the NASA EXCITE mission. I also am involved in cycle 1 JWST exoplanet observations in collaboration with IoA Cambridge. I am interested in understanding atmospheric and planetary processes in temperate regime sub-Neptunes and gas giants, and how these relate to fundamental questions of planet formation and the diversity of the exoplanet population.  I am also interested in astrobiology, particularly the potential for biospheres in temperate gas giants, modeling of observations to find the frequency of life-bearing worlds (the fL factor in the Drake Equation), and how exoplanetary observations might be able to constrain theories of the origin of life.

Cyhoeddiad

2023

2022

2021

2020

2019

2018

2017

2016

2015

2006

2005

2004

Cynadleddau

Erthyglau

Gosodiad

Gwefannau

Monograffau

Ymchwil

Ffocws ymchwil

  • Datblygu arsyllfeydd a theithiau exoplanet newydd:
    • Ariel: Ariel Data Lleihau Biblinell (ADaRP), efelychiadau arweinydd gweithgor, gweithgor adfer sbectol, gweithgorau segment daear a graddnodi.
    • CYFFRO: arsyllfa sbectrosgopeg cam pwrpasol cyntaf; Arsyllfa Exoplanet cyntaf a gludir gan falŵn; Cydweithredwr NASA swyddogol
    • Datblygwyd meddalwedd: ExoSim, ExoSim_N, JexoSim (efelychydd JWST), TwinkleSim, ADaRP
  • Atmosfferau allblanedol
    • sbectrosgopeg trosglwyddo JWST
      • Rhaglen Co-I ar Feic 1 GO 2722:
        'Chemical Disequilibrium in a Temperate sub-Neptune'. Tua 20 awr. Byddwn yn defnyddio NIRISS, NIRSpec a MIRI i gael sbectrwm trosglwyddo'r is-Neifion K2-18 b o 0.6 i 12 micron.
      • Rhaglen Seiclo 2 GO 3557:
        'A JWST Search for Missing Methane'. Tua 70 awr.   Byddwn yn defnyddio NIRISS, NIRSpec a MIRI i gael sbectra trosglwyddo ar gyfer 4 planed is-Neptune / Neifion o faint Neifi.
    • Cewri nwy tymherus: (gyda Luke Booth) yn datblygu dulliau modelu ac arsylwi i nodweddu'r boblogaeth alloblanedol hon sydd wedi'i deall yn wael.
    • Twinkle Mission: aelod o'r tîm gwyddoniaeth ac arsylwr dynodedig ar gyfer Caerdydd, gweithgor cawr nwy oer. Byddaf yn llunio rhaglen arsylwi arolwg atmosfferig exoplanet Twinkle.
  • Astrobioleg
    • DRAKE (Ymchwil Ymroddedig ar gyfer Hyrwyddo Gwybodaeth am Exobiology): cenhadaeth ofod arfaethedig i ddod o hyd i amlder bywyd yn y Galaxy gan ddefnyddio sbectrosgopeg cludo (gweler y papur yn MNRAS).
    • Biosfferau o'r awyr mewn cewri nwy tymherus: modelu'r rhain wrth baratoi ar gyfer arsylwadau yn y dyfodol.

Addysgu

Current undergraduate teaching

  • PX4245 / PXT145 Exoplanets and the Search for Life: Module Organiser (new module for Spring 2023)
  • PX2140 Stars and Planets: Deputy Module Organiser

Previous undergraduate teaching

  • PX1127 Planet Earth: Module Organiser
  • PX2140 Stars and Planets: guest lecturer
  • PX1127 Planet Earth: Deputy Module Organiser
  • PX2134 Structured Programming: Lab supervisor
  • PX1125 Mathematical Practice for Physical Sciences: Marker
  • PX1222 Mathematical Methods for Physicists 2: Marker

Other

  • I supervise PhD and MPhys research projects (see supervision page)

Bywgraffiad

Education

  • PhD, Astrophysics, Cardiff University
  • MSc (Distinction), Space Science, University College London
  • Diploma in Physics (Distinction), Open University
  • MA, Natural Sciences, Cambridge University
  • MB, BChir, Medicine, Cambridge University
  • Grad. Cert. Applied Sciences, Space Studies, University of South Australia
  • Space Studies Program, International Space University

Aelodaethau proffesiynol

  • Fellow of the Royal Astronomical Society
  • Fellow of the Higher Education Academy

Safleoedd academaidd blaenorol

  • 2022- Present: Lecturer, School of Physics and Astronomy, Cardiff University
  • 2017-2021: Post-doctoral Research Associate, Cardiff University
  • 2013-2017: Post-graduate Research Student, Cardiff University
  • 2003-2005: Visiting Researcher, Space Medicine & Health Care Systems Office, NASA Johnson Space Center, Houston.
  • 2003-2005: Honorary Lecturer in Space Life Sciences, Dept. of Space & Climate Physics, University College London

Outreach and Media

  • BBC Radio Wales Science Cafe interview about the ARIEL space mission (April 2018).
  • Pythagorean Astronomy podcast interview about TESS, ARIEL and other exoplanet missions (April 2018).
  • Exoplanet talks for Cardiff AS Level Summer Programmes 2018/19.
  • Stargazing talk and telescope observing with Scouts (Spring 2019).
  • Online astronomy talk with Scouts (Winter 2020).
  • 'All About Space' magazine interview about Ariel mission ('Rise of the Exoplanet Hunter') (Jan 2021).
  • Twinkle mission YouTube video ('The Founding Members') (Aug 2021).
  • Pythagorean Astronomy podcast interview about JWST observing programme (Dec 2021).
  • Cardiff School of Physics & Astronomy YouTube video about JWST (Dec 2021).
  • BBC News Wales interview about exoplanets and JWST (July 2022).
  • Nature News and Views article on JWST (Feb 2023).

Pwyllgorau ac adolygu

I currently serve on the following school committees:  a) Equality, diversity and inclusion (EDI), b) Ethics, c) Environment and sustainability.  I am on also the CHART-GEI Schools Engagement Project management team.

Meysydd goruchwyliaeth

Current supervision

  • I am primary PhD supervisor for Luke Booth who is researching exoplanet atmospheres.
  • I am currently on the supervisory team as mentor for two PhD students.
  • I currently supervise the 3rd year project "Missions to the planets" and the 4th year project "Habitable exomoons"

Goruchwyliaeth gyfredol

Luke Booth

Mr Luke Booth

Myfyriwr ymchwil