Research Students

You may find below the list of my PhD Thesis Students (total 13, 6 awarded, 2 submitted, 5 in progress) , Master Thesis Students (total 12 ) and Project Students (total 25) along with very brief description of their works:

PhD Thesis Students

13. Mr. Prayag Sharma

Title:Cosmology with Ly-α forest
Duration:2021- present
Affiliation:Central University of Himachal Pradesh
At Present:CUHP; Webpage:

In brief the main problem addressed in this thesis is … More detail here

12. Mr. Madhu Sudan

Title:Multi-wavelength studies of Seyfert Galaxies
Duration:2021- present
Affiliation:Central University of Himachal Pradesh
At Present:CUHP; Webpage:

In brief the main problem addressed in this thesis is … More detail here

11. Mr. Dharamender Kumar

Title:Probing Active Galctive Nuclei environment at diverse length scales
Duration:2021- present
Affiliation:Central University of Himachal Pradesh
At Present:CUHP; Webpage:

In brief the main problem addressed in this thesis is … More detail here

10. Mr. Himanshu Sharma

Title:Multi-wavelength emission mechanisms in Active Galactic Nuclei
Duration:2021- present
Affiliation:Central University of Himachal Pradesh
At Present:CUHP; Webpage:

In brief the main problem addressed in this thesis is … More detail here

9. Mr. Ritish Kumar

Title:Multi-wavelength spectral energy distribution study of Active Galactic Nuclie
Duration:2020- present
Affiliation:Central University of Himachal Pradesh
At Present:CUHP; Webpage:

In brief the main problem addressed in this thesis is … More detail here

8. Mr. Vivek Kumar Jha

Title:Investigating the Nature and Structure of the Broad Line Region in Active Galactic Nuclei
Duration:2016- 2022
Affiliation:Aryabhatta Research Institute of Observation Sciences
At Present:ARIES; Webpage:

Abstract: Even with large telescope apertures and vast improvements in detector technology, resolving the inner regions of active galaxies remains a formidable challenge. Nevertheless, understanding the innermost regions of these galaxies is critical to understanding the galaxy evolution and the structure and dynamics of matter in the vicinity of a Supermassive Black Hole (SMBH). In this thesis, we have explored indirect methods to further our understanding of the innermost regions in Active galactic nuclei (AGN). More detail here

7. Mr. Vibhore Negi

Title:Extragalactic Astronomy Using 4m-Liquid Mirror telescope
Duration:2016-2022
Affiliation:Aryabhatta Research Institute of Observation Sciences
At Present:ARIES Web

In brief the main problemaddressed in this thesis is … More detail here

6. Ms. Priyanka Jalan

Title:Probing the physical state of the Inter-Galactic Medium
Duration:2015-2020
Affiliation:Aryabhatta Research Institute of Observation Sciences
At Present:Post-Doc Poland Webpage:

In brief the main problem addressed in this thesis is … More detail here

5. Dr. Vineet Ojha

Title:Multi-wavelength study of Narrow line Seyfert-I galaxies
Duration:2015-2020
Affiliation:Aryabhatta Research Institute of Observation Sciences
At Present:Post-Doc at Physical Research Laboratory Webpage:

In brief the main problem addressed in this thesis is … More detail here

4. Dr. Sapna Mishra

Title:On the nature of AGN feedbacks
Duration:2015-2020
Affiliation:Aryabhatta Research Institute of Observation Sciences
At Present:Post-Doc at Inter University of Astronomy and Astrophysics Webpage:

In brief the main problem addressed in this thesis is … More detail here

3. Dr. Sunil MalikPhd Students

(Co-guide)

Title:Astrophysical Magnetic Field
Duration:2015-2020
Affiliation:Delhi University
At Present:Post-Doc at University of Potsdam Germany Webpage:

In brief the main problem addressed in this thesis is … More detail here

2. Dr. Parveen Kumar

Title:On the nature of Weak Line QSOs
Duration:2012-2018
Affiliation:Aryabhatta Research InstitutMulti-wavelength studye of Observation Sciences
At Present:Post-Doc at Physical Research Laboratory Webpage:

In brief the main problem addressed in this thesis is … More detail here

1. Dr. Ravi Joshi

Title:Central Engine and Environments of Active Galactic Nuclei
Duration:2009-2014
Affiliation:Aryabhatta Research Institute of Observation Sciences
At Present:Faculty at Indian Institute of Astrophysics Webpage:

In brief the main problem addressed in this thesis is … More detail here

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Master Thesis Students

  1. Mr. Paryag Sharma (CUHP20PGPAS18) MSc-2022 Proximity Effect of Quasars

  2. Mr. Rajat Kumar (CUHP20PGPAS21) MSc-2022 Analyzing absorption line seen in distant QSO spectra

  3. Mr. Sudesh Kumar CUHP19PGPAS21 MSc-2021 Spectroscopy and data reduction BAL QSO J0911+1070

  4. Vivek Kumar CUHP19PGPAS26 MSc 2021 Spectroscopy of X-ray loud BAL QSO J0214-0046

  5. Diwakar CUHP19PGPAS33 MSc-2021 Black Hole Mass estimation based on lag measurements of continuum and BLR region of AGN

  6. Amit Sharma CUHP19PGPAS27 MSc-2021 Comparison of Spectral Energy Distribution of Blazar and Quasar

  7. Dharamender Kumar CUHP19PGPAS06 MSc-2021 AGN Reverberation Mapping: A tool to probe the Mass of Supermassive Black Hole

  8. Himanshu Kumar CUHP19PGPAS08 MSc-2021 Comparison of Spectral Energy Distribution of Blazar 3C272 and Quasar

  9. Arun Kumar CUHP18PGPAS04 MSc-2020 Variability study of NLSY1s

  10. Vikrant Chauhan CUHP18PGPAS28 MSc-2020 Variability of source J0324+3410 in NLSy1

  11. Shiwani CUHP18PGPAS24 MSc-2020 Optical Spectroscopic study of Blazar

  12. Yogesh Kumar CUHP18PGPAS35 Study of Variability and outflows in BAL-QSO J152553+513649

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Project Students

  1. (25.) INOV properties of blazar like BALQSOs; Ms Sridevi, IISER-Bhopal 2017 (cont).

  2. (24.) INOV properties of X-ray detected and gamma-ray undetected NLSY-1 galaxies ; Mr. Parth Sunil, IISER-Bhopal 2017.

  3. (23.) Photometric Reverberation mapping of low-luminosity AGN ; Mr. Krishan Kumar, ARIES, ARIES-gradual school project 2017(ongoing).

  4. Measuring the time delay in multiple lens QSOs, ; Ms. Kanchan Soni, IISER TVM, INSPIRE fellow, June-July 2016.

  5. Constraining mean UV-radiation field (J21) using transverse proximity effects in QSO pairs ; Ms. Priyanka Jalan, ARIES Graduate school project, May-July 2016.

  6. Modeling the occurrence rate of MgII absorber using halo mass function ; Mr. Anurag Mishra, IIST-TVM, June-July 2016.

  7. Probing the physical state of 21cm absorber in the line of sight to background radio quasar; Ms. Avani Parmar, Pune Universityr, Academy summer fellow, June-July 2015.

  8. Probing cool gas outflow base on number density of MgII absorbers; ARIES Graduate school project, Ms. Sapna Mishra, May-July 2015

  9. Faraday rotaton of intervening galaxy, a probe of high-z magnetic filed; Ms. Vidushi Sharma, ARIES Graduate school project, May-July 2015.

  10. Probing the associated environment of the quasar q0059-2735; Pritam Jayoti, Tejpur central University, Assam, Academy summer fellow, June-July 2014.

  11. Blazar absorber spectroscopy from UVES/VLT and HCT data; Sruthil, Paundichery central University, Paundichery, Academy summer fellow, May-June 2014.

  12. Astrophysical Line Driven Winds; Reetika Joshi, Kumaun University Nainital, INSPIRE fellow, April-June 2014.

  13. Incidence of Mg II absorption systems towards Steep-spectrum radio quasars and blazars; Anikhet Gaur, IISER Mohali, INSPIRE fellow Dec. 2013 (coming for project extension)

  14. Incidence of CIV absorption systems towards flat-spectrum radio quasars and blazars, Mayank Singh, CBS Mumbai, Academy summer fellow, Dec 2013 (coming for project extension)

  15. The Broad absorption line (BAL) QSOs: constraint outflow using BAL line, Pritam Jayoti, Tejpur central University, Assam, Academy summer fellow, May-June 2013.

  16. The X-ray loud BAL QSOs: spectral variability modeling, , Jhilik Majumday, Jadhapur University, West Bangal, Academy summer fellow, June-July 2013.

  17. Optical micro-variability study of Quasars, Hemant Kumar Verma, PRS University Raipur, March-April 2013.

  18. Spectral properties of flat-spectrum radio quasars, Sukruti Bansal, IISER Pune, Academy summer fellow, June-July 2012 (project report prepared and talk given)

  19. Incidence of CIV absorption systems towards flat-spectrum radio quasars and blazars, Mayank Singh, CBS Mumbai, Academy summer fellow, May-June 2012 (project report prepared and talk given)

  20. On the Incidence Rate of Intervening CIV Absorption Systems Towards SSRQs and RQQSO ; Deepak Kumar Deo, IISER Bhopal, INSPIRE fellow, May-June 2012 (project report prepared and talk given)

  21. Incidence of Mg II absorption systems towards Steep-spectrum radio quasars and blazars; Anikhet Gaur, IISER Mohali, INSPIRE fellow June-July 2012 (project report prepared and talk given)

  22. Does number statistics of MgII absorption line systems depend on polarisation of background sources?; Parashakti, Bharathidasan Uni., Tiruchirapalli, Academy summer fellow, May-June 2011 (project report prepared and talk given)

  23. Probing the cosmological variation of the fine-structure constant; Ramabhadran Sundaram, NITK Surathkal, Academy summer fellow, June-July 2010 (project report prepared and talk given)

  24. Photo- ionization modeling of QSO absorber: zabs = 1.149 seen toward QSO HE0515-4414; NIT Roukela, Academy summer fellow, June-July 2010 (project report prepared and talk given)

  25. Wavelet analysis of AGN light curve; Tushar Aggrawal, NIT Jamshedpur, June-July 2010

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