384 citations · 901 across the 34 of their papers we have counts for
14 papers · 1 filter
Estimating amplitude of matter density fluctuations in solar and supernova models using neutrino flavor evolution
Caroline Laber-Smith, Hansen Torres, Lily Newkirk +3
Neutrinos can undergo substantial flavor evolution between their production in astrophysical sources-such as the Sun and core-collapse supernovae-and their subsequent detection in…
Proton-rich production of lanthanides: the process
Xilu Wang, Amol V. Patwardhan, Yangming Lin +7
The astrophysical origin of the lanthanides is an open question in nuclear astrophysics. Besides the widely studied , , and processes in moderately-to-strongly neutron-ri…
-process in Core-Collapse Supernovae: Imprints of General Relativistic Effects
Alexander Friedland, Derek J. Li, Giuseppe Lucente +2
The origin of a number of proton-rich isotopes in the solar system has been a long-standing puzzle. A promising explanation is the -process, which is posited to operate in the…
Leveraging neutrino flavor physics for supernova model differentiation
Lily Newkirk, Eve Armstrong, A. Baha Balantekin +7
Neutrino flavor evolution is critical for understanding the physics of dense astrophysical regimes, including core-collapse supernovae (CCSN). Powerful numerical integration codes…
Three-flavor, Full Momentum Space Neutrino Spin Oscillations in Neutron Star Mergers
Henry Purcell, Sherwood Richers, Amol V. Patwardhan +1
In the presence of anisotropic neutrino and antineutrino fluxes, the quantum kinetic equations drive coherent oscillations in neutrino helicity, frequently referred to as spin osci…
Successful -process in neutrino-driven outflows in core-collapse supernovae
Alexander Friedland, Payel Mukhopadhyay, Amol V. Patwardhan
The origin of the solar system abundances of several proton-rich isotopes, especially Mo and Ru, has been an enduring mystery in nuclear astrophysics. An attrac…
Collective neutrino oscillations and heavy-element nucleosynthesis in supernovae: exploring potential effects of many-body neutrino correlations
A. Baha Balantekin, Michael J. Cervia, Amol V. Patwardhan +2
In high-energy astrophysical processes involving compact objects, such as core-collapse supernovae or binary neutron star mergers, neutrinos play an important role in the synthesis…
Inference of bipolar neutrino flavor oscillations near a core-collapse supernova, based on multiple measurements at Earth
Eve Armstrong, Amol V. Patwardhan, A. A. Ahmetaj +4
Neutrinos in compact-object environments, such as core-collapse supernovae, can experience various kinds of collective effects in flavor space, engendered by neutrino-neutrino inte…
Time dependent signatures of core-collapse supernova neutrinos at HALO
B. Ekinci, Y. Pehlivan, Amol V. Patwardhan
We calculate the response of a lead-based detector, such as the Helium and Lead Observatory (HALO) or its planned upgrade HALO-1kt to a galactic core-collapse supernova. We pay par…
Inference of neutrino flavor evolution through data assimilation and neural differential equations
Ermal Rrapaj, Amol V. Patwardhan, Eve Armstrong +1
The evolution of neutrino flavor in dense environments such as core-collapse supernovae and binary compact object mergers constitutes an important and unsolved problem. Its solutio…
Inference offers a metric to constrain dynamical models of neutrino flavor transformation
Eve Armstrong, Amol V. Patwardhan, Ermal Rrapaj +2
The multi-messenger astrophysics of compact objects presents a vast range of environments where neutrino flavor transformation may occur and may be important for nucleosynthesis, d…
Neutrino Flavor Evolution in Neutron Star Mergers
James Y. Tian, Amol V. Patwardhan, George M. Fuller
We examine the flavor evolution of neutrinos emitted from the disk-like remnant (hereafter called \lq\lq neutrino disk\rq\rq) of a binary neutron star (BNS) merger. We specifically…
An optimization-based approach to calculating neutrino flavor evolution
Eve Armstrong, Amol V. Patwardhan, Lucas Johns +3
We assess the utility of an optimization-based data assimilation (D.A.) technique for treating the problem of nonlinear neutrino flavor transformation in core collapse supernovae.…
Prospects for Neutrino Spin Coherence in Supernovae
James Y. Tian, Amol V. Patwardhan, George M. Fuller
We present neutrino bulb model simulations of Majorana neutrino coherent spin transformation (i.e., neutrino-antineutrino transformation), coupled to neutrino flavor evolution, for…