On the opportunities and risks of foundation models

…, Z Munyikwa, S Nair, A Narayan, D Narayanan… - arXiv preprint arXiv …, 2021 - arxiv.org
AI is undergoing a paradigm shift with the rise of models (eg, BERT, DALL-E, GPT-3) that are
trained on broad data at scale and are adaptable to a wide range of downstream tasks. We …

[HTML][HTML] First M87 event horizon telescope results. IV. Imaging the central supermassive black hole

…, M Nakamura, R Narayan, G Narayanan… - The Astrophysical …, 2019 - iopscience.iop.org
… Nagar 75 , Masanori Nakamura 7 , Ramesh Narayan 4,11 , Gopal Narayanan 76 , Iniyan
Natarajan 39 , Roberto Neri 16 , Chunchong Ni 19,20 , Aristeidis Noutsos 6 , Hiroki Okino 33,77 …

[HTML][HTML] First M87 event horizon telescope results. VI. The shadow and mass of the central black hole

…, M Nakamura, R Narayan, G Narayanan… - The Astrophysical …, 2019 - iopscience.iop.org
We present measurements of the properties of the central radio source in M87 using Event
Horizon Telescope data obtained during the 2017 campaign. We develop and fit geometric …

[HTML][HTML] Biological wastewater treatment and bioreactor design: a review

CM Narayanan, V Narayan - Sustainable environment research, 2019 - Springer
Various processes that have been successfully developed for wastewater treatment (treatment
of industrial wastes/effluents) have been surveyed with special reference to biological …

[HTML][HTML] First M87 event horizon telescope results. V. Physical origin of the asymmetric ring

…, M Nakamura, R Narayan, G Narayanan… - The Astrophysical …, 2019 - iopscience.iop.org
The Event Horizon Telescope (EHT) has mapped the central compact radio source of the
elliptical galaxy M87 at 1.3 mm with unprecedented angular resolution. Here we consider the …

[HTML][HTML] First M87 event horizon telescope results. II. Array and instrumentation

…, M Nakamura, R Narayan, G Narayanan… - The Astrophysical …, 2019 - iopscience.iop.org
The Event Horizon Telescope (EHT) is a very long baseline interferometry (VLBI) array that
comprises millimeter-and submillimeter-wavelength telescopes separated by distances …

[HTML][HTML] First M87 event horizon telescope results. III. Data processing and calibration

…, M Nakamura, R Narayan, G Narayanan… - The Astrophysical …, 2019 - iopscience.iop.org
… Nagar 73 , Masanori Nakamura 7 , Ramesh Narayan 4,11 , Gopal Narayanan 74 , Iniyan
Natarajan 39 , Roberto Neri 16 , Chunchong Ni 19,20 , Aristeidis Noutsos 6 , Hiroki Okino 33,75 …

Gravitational test beyond the first post-Newtonian order with the shadow of the M87 black hole

…, H Nagai, NM Nagar, R Narayan, G Narayanan… - Physical review …, 2020 - APS
The 2017 Event Horizon Telescope (EHT) observations of the central source in M87 have
led to the first measurement of the size of a black-hole shadow. This observation offers a new …

The event horizon general relativistic magnetohydrodynamic code comparison project

…, NM Nagar, M Nakamura, G Narayanan… - The Astrophysical …, 2019 - iopscience.iop.org
Fully general relativistic models of astrophysical sources are in high demand, not only since
the discovery of gravitational waves emitted from merging stellar mass black holes (Abbott et …

The sequence of the human genome

…, N Milshina, HM Moore, AK Naik, VA Narayan… - science, 2001 - science.org
A 2.91-billion base pair (bp) consensus sequence of the euchromatic portion of the human
genome was generated by the whole-genome shotgun sequencing method. The 14.8-billion …