Zobrazeno 1 - 10
of 1 662
pro vyhledávání: '"SINGH, HARINDER"'
Autor:
Avdeeva, Aleksandra, Tan, Kefeng, Joshi, Santosh, Kovaleva, Dana, Singh, Harinder P., Luo, Ali, Malkov, Oleg
Despite having different astronomical characteristics, the studies of mira variables and ultra-cool dwarfs frequently show similar red colors, which could cause leading to photometric misclassification. This study uses photometric data from the WISE,
Externí odkaz:
http://arxiv.org/abs/2409.11266
Autor:
Kumar, Nitesh, Bhardwaj, Anupam, Singh, Harinder P., Rejkuba, Marina, Marconi, Marcella, Prugniel, Philippe
We present a comprehensive photometric study of RR Lyrae stars in the M3 globular cluster, utilising a vast dataset of 3140 optical ($UBVRI$) CCD images spanning 35 years from astronomical data archives. We have successfully identified previously kno
Externí odkaz:
http://arxiv.org/abs/2405.13464
Autor:
Bhardwaj, Anupam, Rejkuba, Marina, Ngeow, Chow-Choong, Marconi, Marcella, Ripepi, Vincenzo, Samantaray, Abhinna Sundar, Singh, Harinder P.
Draco dwarf Spheroidal galaxy (dSph) is one of the nearest and the most dark matter dominated satellites of the Milky Way. We obtained multi-epoch near-infrared (NIR, $JHK_s$) observations of the central region of Draco dSph covering a sky area of $\
Externí odkaz:
http://arxiv.org/abs/2404.01394
Autor:
Das, Susmita, Molnár, László, Kanbur, Shashi M., Joyce, Meridith, Bhardwaj, Anupam, Singh, Harinder P., Marconi, Marcella, Ripepi, Vincenzo, Smolec, Radoslaw
We present new theoretical period-luminosity (PL) and period-Wesenheit (PW) relations for a fine grid of convective BL Her, the shortest period T2Cs, models computed using MESA-RSP and compare our results with the empirical relations from Gaia DR3. W
Externí odkaz:
http://arxiv.org/abs/2401.11869
Autor:
Bhardwaj, Anupam, Riess, Adam G., Catanzaro, Giovanni, Trentin, Erasmo, Ripepi, Vincenzo, Rejkuba, Marina, Marconi, Marcella, Ngeow, Chow-Choong, Macri, Lucas M., Romaniello, Martino, Molinaro, Roberto, Singh, Harinder P., Kanbur, Shashi M.
Milky Way Cepheid variables with accurate {\it Hubble Space Telescope} photometry have been established as standards for primary calibration of the cosmic distance ladder to achieve a percent-level determination of the Hubble constant ($H_0$). These
Externí odkaz:
http://arxiv.org/abs/2309.03263
Autor:
Kumar, Nitesh, Bhardwaj, Anupam, Singh, Harinder P., Das, Susmita, Marconi, Marcella, Kanbur, Shashi M., Prugniel, Philippe
We present a new technique to generate the light curves of RRab stars in different photometric bands ($I$ and $V$ bands) using Artificial Neural Networks (ANN). A pre-computed grid of models was used to train the ANN, and the architecture was tuned u
Externí odkaz:
http://arxiv.org/abs/2303.15117
Autor:
Bhardwaj, Anupam, Marconi, Marcella, Rejkuba, Marina, de Grijs, Richard, Singh, Harinder P., Braga, Vittorio F., Kanbur, Shashi, Ngeow, Chow-Choong, Ripepi, Vincenzo, Bono, Giuseppe, De Somma, Giulia, Dall'Ora, Massimo
RR Lyrae variables are excellent population II distance indicators thanks to their well-defined period-luminosity relations (PLRs) at infrared wavelengths. We present results of near-infrared (NIR) monitoring of Galactic globular clusters to empirica
Externí odkaz:
http://arxiv.org/abs/2302.05455
Autor:
Kundu, Richa, Navarrete, Camila, Sbordone, Luca, Carballo-Bello, Julio A., Fernández-Trincado, José G., Minniti, Dante, Singh, Harinder P.
Publikováno v:
A&A 665, A8 (2022)
Globular clusters (GCs) associated with the Sagittarius dwarf spheroidal galaxy (Sgr dSph) have evolved under the gravitational potential of both Sgr dSph and the Milky Way. The effects of these potentials are most pronounced in the extra-tidal regio
Externí odkaz:
http://arxiv.org/abs/2206.05287
Autor:
Chhibbar, Prabal, Guha Roy, Priyamvada, Harioudh, Munesh K., McGrail, Daniel J., Yang, Donghui, Singh, Harinder, Hinterleitner, Reinhard, Gong, Yi-Nan, Yi, S. Stephen, Sahni, Nidhi, Sarkar, Saumendra N., Das, Jishnu
Publikováno v:
In Cell Reports 26 November 2024 43(11)
