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10th International Conference on Gravitation and Cosmology: New Horizons and Singularities in Gravity (ICGC 2023)

Dec 6โ€‰โ€“โ€‰9, 2023
IIT Guwahati
Asia/Kolkata timezone

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Session

Workshop on Cosmology

Dec 6, 2023, 2:15โ€ฏPM
IIT Guwahati

IIT Guwahati

Conveners

Workshop on Cosmology

  • Pravabati chingangbam
  • Girish Kulkarni (Tata Institute of Fundamental Research)

Workshop on Cosmology

  • Girish Kulkarni (Tata Institute of Fundamental Research)
  • Pravabati chingangbam

Workshop on Cosmology

  • Girish Kulkarni (Tata Institute of Fundamental Research)
  • Pravabati chingangbam

Workshop on Cosmology

  • Pravabati chingangbam
  • Girish Kulkarni (Tata Institute of Fundamental Research)

Presentation materials

There are no materials yet.

  1. 387. Mapping the baryonic Universe: a new window into the cosmos (Invited Talk)
    Hamsa Padmanabhan
    12/6/23, 2:15โ€ฏPM

    Mapping the baryonic content of the Universe, especially after the epoch of Cosmic Dawn -- the birth of the first stars and galaxies --- promises rich insights into both astrophysics and cosmology. The technique of intensity mapping (IM) has emerged as a powerful tool to explore this phase of the Universe by measuring the integrated emission from sources over a broad range of frequencies. A...

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  2. 395. Self-interactions of ULDM to the rescue? (Session 2)
    Bihag Dave (Ahmedabad University)
    12/6/23, 2:45โ€ฏPM
  3. 388. Using Big Bang Nucleosynthesis to constrain f(R) gravity scalarons and primordial black hole masses (Session 1)
    Mr ABHIJIT TALUKDAR (Gauhati University)
    12/6/23, 2:45โ€ฏPM
  4. 389. Exploring Cosmic Anisotropy in the Bianchi-I Cosmological Model (Session 1)
    ANSHUL Verma (Indian Institute of Technology - BHU)
    12/6/23, 3:00โ€ฏPM
  5. 396. Model-independent reconstruction of the evolution of dark energy using Gaussian process regression (Session 2)
    Bikash Ranjan Dinda
    12/6/23, 3:00โ€ฏPM
  6. 390. Detectable signatures of non-Bunch-Davies 3-point correlation from primordial magnetic fields: CMB ฮผT spectrum (Session 1)
    Arko Bhaumik (Indian Statistical Institute, Kolkata)
    12/6/23, 3:15โ€ฏPM
  7. 397. Probing the signatures of astrophysical scatter in the EoR 21cm signal using auto-bispectrum (Session 2)
    Chandra Shekhar Murmu (Indian Institute of Technology Indore)
    12/6/23, 3:15โ€ฏPM
  8. 398. Effects of Z3 symmetric dark matter models on global 21-cm signal (Session 2)
    Debarun Paul (Indian Statistical Institute, Kolkata)
    12/6/23, 3:30โ€ฏPM
  9. 391. Extremely magnified stars in cluster lenses (Session 1)
    Ashish Kumar Meena (Ben-Gurion University of the Negev)
    12/6/23, 3:30โ€ฏPM
  10. 392. An effective field theory approach to understand the primordial magnetogenesis (Session 1)
    Mr Ashu Kushwaha
    12/6/23, 3:45โ€ฏPM
  11. 399. Dark energy, D-branes, and Pulsar Timing Arrays (Session 2)
    Ms Debika Chowdhury
    12/6/23, 3:45โ€ฏPM
  12. 393. Ruling out Strongly Interacting Dark Matterโ€“Dark Radiation Models from Joint Observations of Cosmic Microwave Background and Quasar Absorption Spectra (Session 1)
    Dr Atrideb Chatterjee (Inter-University Centre for Astronomy and Astrophysics)
    12/6/23, 4:00โ€ฏPM
  13. 400. Statistical Approaches to Study statistical Isotropy in CMB Sky maps (Session 2)
    Dipanshu G (IISER Pune & RRI)
    12/6/23, 4:00โ€ฏPM
  14. 401. Expansion-collapse duality between Einstein and Jordan frames: Implications at quantum level (Session 2)
    Dipayan Mukherjee (Indian Institute of Science Education and Research Mohali)
    12/6/23, 4:15โ€ฏPM
  15. 394. Squeezing, Chaos and Thermalization in Periodically Driven Quantum Systems: The Case of Bosonic Preheating (Session 1)
    Ayan Chakraborty (INDIAN INSTITUTE OF TECHNOLOGY GUWAHATI)
    12/6/23, 4:15โ€ฏPM
  16. 425. Morphological Characterization of Galactic Foreground Emissions (Session 1)
    Fazlu Rahman
    12/7/23, 2:30โ€ฏPM
  17. 431. Probing the HI distribution during post-reionization using the redshifted 21-cm marked power spectrum (Session 2)
    Dr Mohammad Kamran (Uppsala University)
    12/7/23, 2:30โ€ฏPM
  18. 432. Cosmological events on the stochastic background of inflationary gravitational waves (Session 2)
    N Malsawmtluangi
    12/7/23, 2:45โ€ฏPM
  19. 426. Ultra-light primordial black holes from first-order phase transition with unique gravitational wave spectrum (Session 1)
    Indrajit Saha (IIT Guwahati, India)
    12/7/23, 2:45โ€ฏPM
  20. 433. Emergence of cosmic space with Barrow entropy, a non-equilibrium thermodynamic description (Session 2)
    NANDHIDA KRISHNAN P (Ph.d, Department of Physics, Cochin University of Science and Technology)
    12/7/23, 3:00โ€ฏPM
  21. 427. Measuring secondary halo bias using nearest neighbor distributions (Session 1)
    Kaustubh Gupta (Indian Institute of Science Education and Research Pune)
    12/7/23, 3:00โ€ฏPM
  22. 434. Galaxy-dark matter connection of photometric galaxies from the HSC-SSP Survey using weak lensing (Session 2)
    Navin Chaurasiya (IUCAA)
    12/7/23, 3:15โ€ฏPM
  23. 428. Impact of sources of Epoch of Reionization (EoR) on the 21-cm bispectrum (Session 1)
    Leon Noble (Indian Institute of Technology Indore)
    12/7/23, 3:15โ€ฏPM
  24. 435. The abundance of core--collapsed subhalos in SIDM: insights from structure formation in ฮ›CDM (Session 2)
    Neev Shah
    12/7/23, 3:30โ€ฏPM
  25. 429. The co-evolution of supermassive black holes and their host haloes (Session 1)
    Mahavir Sharma (IIT Bhilai)
    12/7/23, 3:30โ€ฏPM
  26. 430. Primordial black hole reheating and its possible signatures (Session 1)
    MD RIAJUL Haque (Indian Institute of Technology Madras)
    12/7/23, 3:45โ€ฏPM
  27. 436. Ultra-low mass primordial black holes in the early universe can explain the PTA signal (Session 2)
    Nilanjandev Bhaumik (Indian Institute of Science, Bengaluru)
    12/7/23, 3:45โ€ฏPM
  28. 465. Instrumentation for redshifted 21-cm line observations (Invited Talk)
    Saurabh Singh
    12/8/23, 2:15โ€ฏPM

    Universe has several poorly constrained periods over its evolution. Formation of first stars and galaxies, followed by reionization of the intergalactic medium is one such epoch. Often referred to as "cosmic dawn", observing this period is extremely challenging due to the faint nature of the signals originating from it. The redshifted 21-cm line from neutral hydrogen offers one such...

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  29. 466. Gravitational Waves Background from Quintessential Inflation and NANOGrav data (Session 1)
    Mr NUR JAMAN (Centre for Theoretical Physics, Jamia Millia Islamia)
    12/8/23, 2:45โ€ฏPM
  30. 472. The origin of supermassive black holes at high redshift (Session 2)
    Ritik Sharma
    12/8/23, 2:45โ€ฏPM
  31. 473. Consistency of loop quantum cosmology with the cosmic microwave background bispectrum (Session 2)
    Roshna K (National Institute of Technology Karnataka, Surathkal)
    12/8/23, 3:00โ€ฏPM
  32. 467. Reconstructing the universe with machine learning (Session 1)
    Purba Mukherjee (Indian Statistical Institute, Kolkata)
    12/8/23, 3:00โ€ฏPM
  33. 468. Loop-level contributions of primordial non-Gaussianities and their observational consequences (Session 1)
    Ragavendra H V
    12/8/23, 3:15โ€ฏPM
  34. 474. Qualitative Stability Analysis of Cosmological models in $f(T,\phi)$ Gravity (Session 2)
    S SS
    12/8/23, 3:15โ€ฏPM
  35. 475. A Bayesian Neural Network based ILC method to estimate accurate CMB polarization power spectrum over large angular scales (Session 2)
    Sarvesh Kumar Yadav (Raman Research Institute, Banglore, India)
    12/8/23, 3:30โ€ฏPM
  36. 469. A geometrical interpretation of foreground filters for HI intensity (Session 1)
    Dr Rahul Kothari (Indian Institute of Technology, Mandi)
    12/8/23, 3:30โ€ฏPM
  37. 476. HI stacking predictions for upcoming surveys with SKA precursors (Session 2)
    Sauraj Bharti (IISER Mohali, Punjab 140306, India)
    12/8/23, 3:45โ€ฏPM
  38. 470. Precision Weak Lensing Analysis In CMB Observations For Upcoming Missions (Session 1)
    Rajorshi Chandra (Raman Research Institute)
    12/8/23, 3:45โ€ฏPM
  39. 477. Cosmology from Cross-Correlation of ACT-DR4 CMB Lensing and DES-Y3 Cosmic Shear (Session 2)
    Shabbir Shaikh (Arizona State University)
    12/8/23, 4:00โ€ฏPM
  40. 471. Distinguishing cosmological models through quantum signatures of primordial perturbations (Session 1)
    Rathul nath Raveendran (Indian Association for the Cultivation of Science, Kolkata, India)
    12/8/23, 4:00โ€ฏPM
  41. 508. The dynamics of Dark matter and the halo from Cluster to Dwarf scales (Invited Talk)
    Susmita Adhikari (IISER, Pune)
    12/9/23, 2:30โ€ฏPM
  42. 515. Loop contributions to the scalar power spectrum due to quartic order action in ultra slow roll inflation (Session 2)
    Mr SUVASHIS MAITY (INDIAN INSTITUTE OF TECHNOLOGY MADRAS)
    12/9/23, 3:00โ€ฏPM
  43. 509. Non-linear joint density-velocity evolution in f(R) theories of modified gravity (Session 1)
    Sharvari Nadkarni-Ghosh (IIT Kanpur)
    12/9/23, 3:00โ€ฏPM
  44. 516. A Local Perspective on Hubble Tension from Cosmological N-body Simulations (Session 2)
    Swati Gavas (Indian Institute of Science Education and Research Mohali (IISER-M))
    12/9/23, 3:15โ€ฏPM
  45. 510. Dynamical system analysis in teleparallel gravity with boundary term (Session 1)
    Mr Siddheshwar Kadam (BITS-Pilani Hyderabad Campus India)
    12/9/23, 3:15โ€ฏPM
  46. 517. Signature flip in deceleration parameter: A thermodynamic phase transition? (Session 2)
    Tanima Duary (INDIAN INSTITUTE OF SCIENCE EDUCATION AND RESEARCH KOLKATA)
    12/9/23, 3:30โ€ฏPM
  47. 511. Synchrotron radiation from cosmic string wakes. (Session 1)
    Soumen Nayak
    12/9/23, 3:30โ€ฏPM
  48. 512. A semi-analytical treatment of coupled CDM-massive neutrino perturbations in diverse cosmological backgrounds (Session 1)
    Sourav Pal (Indian Statistical Institute, Kolkata)
    12/9/23, 3:45โ€ฏPM
  49. 518. Non-linear regression with errors on both axes and its implications on Hubble tension (Session 2)
    Ujjwal Upadhyay
    12/9/23, 3:45โ€ฏPM
  50. 513. A new method to simultaneously determine the reionization history and power spectrum (Session 1)
    Suman Pramanick
    12/9/23, 4:00โ€ฏPM
  51. 519. Dark energy in light of the early JWST observations (Session 2)
    upala mukherjee
    12/9/23, 4:00โ€ฏPM
  52. 514. The possibility of Q-balls as cosmological and galactic dark matter (Session 1)
    Susobhan Mandal (IIT Bombay)
    12/9/23, 4:15โ€ฏPM
  53. 520. Towards a possible solution to the Hubble tension with Horndeski gravity (Session 2)
    Yashi Tiwari (Indian Institute of Science, Bangalore, India)
    12/9/23, 4:15โ€ฏPM
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