E-print Articles: Recent submissions

Now showing items 141-160 of 519

Star-forming site RAFGL 5085: is a perfect candidate of hub-filament system?

Dewangan, Lokesh Kumar; Bhadari, Naval Kishor; Maity, Arup Kumar; Pandey, Rakesh; Sharma, Saurabh; Baug, T.; Eswaraiah, C. (Cornell University Library, 2022-10)

To investigate the star formation process, we present a multi-wavelength study of a massive star-forming site RAFGL 5085, which has been associated with the molecular outflow, HII region, and near-infrared cluster. The ...
Probing the global dust properties and cluster formation potential of the giant molecular cloud G148.24+00.41

Rawat, Vineet; Samal, M. R.; Walker, D. L.; Zavagno, A.; Tej, A.; Marton, G.; Ojha, D. K.; Elia, Davide; Chen, W. P.; Jose, J.; Eswaraiah, C. (Cornell University Library, 2023-03)

Clouds more massive than about 105 M⊙ are potential sites of massive cluster formation. Studying the properties of such clouds in the early stages of their evolution offers an opportunity to test various cluster formation ...
Test of the second postulate of relativity from gravitational wave observations

Ghosh, Rajes; Nair, Sreejith; Pathak, Lalit; Sarkar, Sudipta; Sengupta, Anand S. (Cornell University Library, 2023-04)

The second postulate of special relativity states that the speed of light in vacuum is independent of the emitter's motion. Though this claim has been verified in various experiments and observations involving electromagnetic ...
Anomalous transport in angstrom-sized membranes with exceptional water flow rates and dye/salt rejections

Rathi, Aparna; Singh, Khushwant; Saini, Lalita; Kaushik, Suvigya; Dhal, Biswabhusan; Parmar, Shivam; Kalon, Gopinadhan (Cornell University Library, 2023-03)

Fluidic channels with physical dimensions approaching molecular sizes are crucial for novel desalination, chemical separation, and sensing technologies. However, fabrication of precisely controlled fluidic channels in the ...
Simple experimental realization of optical Hilbert Hotel using scalar and vector fractional vortex beams

Kumar, Subith; Ghosh, Anirban; Kaushik, Chahat; Shiri, Arash; Gbur, Greg; Sharma, Sudhir; Samanta, G. K. (Cornell University Library, 2023-03)

Historically, infinity was long considered a vague concept - boundless, endless, larger than the largest - without any quantifiable mathematical foundation. This view changed in the 1800s through the pioneering work of ...
Discovery of a massive giant planet with extreme density around a sub-giant star TOI-4603

Khandelwal, Akanksha; Sharma, Rishikesh; Chakraborty, Abhijit; Chaturvedi, Priyanka; Ulmer-Moll, Solène; Ciardi, David R.; Boyle, Andrew W.; Baliwal, Sanjay; Bieryla, Allyson; Latham, David W.; Prasad, Neelam J. S. S. V.; Nayak, Ashirbad; Lendl, Monika; Mordasini, Christoph (Cornell University Library, 2023-03)

We present the discovery of a transiting massive giant planet around TOI-4603, a sub-giant F-type star from NASA's Transiting Exoplanet Survey Satellite (TESS). The newly discovered planet has a radius of 1.042+0.038-0.035 ...
On the cyclotron absorption line and evidence of the spectral transition in SMC X-2 during 2022 giant outburst

Jaisawal, Gaurava K.; Vasilopoulos, Georgios; Naik, Sachindra; Maitra, Chandreyee; Malacaria, Christian; Chhotaray, Birendra; Gendreau, Keith C.; Guillot, Sebastien; Ng, Mason; Sanna, Andrea (Cornell University Library,, 2023-03)

We report comprehensive spectral and temporal properties of the Be/X-ray binary pulsar SMC X-2 using X-ray observations during the 2015 and 2022 outbursts. The pulse profile of the pulsar is unique and strongly luminosity ...
Su-Schrieffer-Hegger (SSH) model with non-orientable bulk: union of topology and flat bands in one dimension

Devanarayanan, Bharathiganesh (Cornell University Library, 2023-02)

In this letter we summarise our study of Su-Schrieffer-Hegger(SSH) model with a one dimensional non-orientable manifold as bulk. For this purpose a SSH model with any bulk (SAB) is introduced. We observe the following: (1) ...
Quasi-normal modes of non-separable perturbation equations: the scalar non-Kerr case

Ghosh, Rajes; Franchini, Nicola; Volkel, Sebastian H.; Barausse, Enrico (Cornell University Library, 2023-02)
IC 5146 dark streamer: is a first reliable candidate of edge collapse, hub-filament systems, and intertwined sub-filaments?

Dewangan, Lokesh Kumar; Bhadari, Naval Kishor; Menshchikov, A.; Chung, Eun Jung; Devaraj, R.; Lee, C. W.; Maity, Arup Kumar; Baug, T. (Cornell University Library, 2023-02)

The paper presents an analysis of multi-wavelength data of a nearby star-forming site IC 5146 dark Streamer (d ∼600 pc), which has been treated as a single and long filament, fl. Two hub-filament systems (HFSs) are known ...
Open data from the third observing run of LIGO, Virgo, KAGRA and GEO

Sengupta, Anand S. et al. (Cornell University Library, 2023-02)

The global network of gravitational-wave observatories now includes five detectors, namely LIGO Hanford, LIGO Livingston, Virgo, KAGRA, and GEO 600. These detectors collected data during their third observing run, O3, ...
Exploring the short-term variability of Hα and Hβ emissions in a sample of M Dwarfs

Kumar, Vipin; Rajpurohit, A. S.; Srivastava, Mudit K. (Cornell University Library, 2023-02)

Activities in M dwarfs show spectroscopic variability over various time scales ranging from a few seconds to several hours. The time scales of such variability can be related to internal dynamics of M dwarfs like magnetic ...
Constraints on monopole-dipole potential from the tests of gravity: first bounds from single astrophysical observations

Poddar, Tanmay Kumar; Pachhar, Debashis (Cornell University Library, 2023-02)

Ultralight Axion Like Particle (ALP) can mediate a long range monopole-dipole macroscopic force between Earth and Sun if Earth is treated as a polarized source. There are about 1042 number of polarized electrons in Earth ...
Circuit complexity for Carrollian conformal (BMS) field theories

Bhattacharyya, Arpan; Nandi, Poulami (Cornell University Library, 2023-01)

We systematically explore the construction of Nielsen's circuit complexity to a non-Lorentzian field theory keeping in mind its connection with flat holography. We consider a 2d boundary field theory dual to 3d asymptotically ...
Dark matter production from two evaporating primordial black holes

Chaudhuri, Arnab; Coleppa, Baradhwaj; Loho, Kousik (Cornell University Library, 2023-01)

Particulate Dark Matter (DM), completely isolated from the Standard Model particle sector, can be produced in the early universe from Primordial Black Hole (PBH) evaporation. However, Big Bang Nucleosynthesis (BBN) ...
Evolution of elemental abundances in hot active region cores from Chandrayaan-2 XSM observations

Mondal, Biswajit; Vadawale, Santosh V.; Del Zanna, Giulio; Mithun, N. P. S.; Sarkar, Aveek; Mason, Helen E.; Janardhan, P.; Bhardwaj, Anil (Cornell University Library, 2023-01)

The First Ionization Potential (FIP) bias, whereby elemental abundances for low FIP elements in different coronal structures vary from their photospheric values and may also vary with time, has been widely studied. In order ...
21 cm line astronomy and constraining new physics

Natwariya, Pravin Kumar (Cornell University Library, 2023-01)

The 21 cm signal appears to be a treasure trove to provide an insight into the period when the first generation of luminous objects formed in the Universe. Hydrogen is the predominating fraction of the total baryonic matter ...
Role of small-scale impulsive events in heating the X-ray bright points of the quiet sun

Mondal, Biswajit; Klimchuk, James A.; Vadawale, Santosh V.; Sarkar, Aveek; Del Zanna, Giulio; Athiray, P. S.; Mithun, N. P. S.; Mason, Helen E.; Bhardwaj, A. (Cornell University Library, 2023-01)

Small-scale impulsive events, known as nanoflares, are thought to be one of the prime candidates that can keep the solar corona hot at its multi-million Kelvin temperature. Individual nanoflares are difficult to detect ...
Deciphering core, valence and double-core-polarization contributions to parity violating amplitudes in 133Cs using different methods

Chakraborty, Arup; Sahoo, B. K. (Cornell University Library, 2023-01)

As a prerequisite of probing physics beyond the Standard Model (BSM) of particle physics, it is imperative to perform calculation of parity violating electric dipole (E1PV) amplitudes within 0.5\% accuracy in atomic systems. ...
Quantum gravity fluctuations in the timelike Raychaudhuri equation

Bak, Sang-Eon; Parikh, Maulik; Sarkar, Sudipta; Setti, Francesco (Cornell University Library, 2022-12)

We consider a timelike geodesic congruence in the presence of perturbative quantum fluctuations of the spacetime metric. We calculate the change in the volume of a bundle of geodesics due to such fluctuations and thereby ...

Now showing items 141-160 of 519

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