Zobrazeno 1 - 10
of 250
pro vyhledávání: '"Ninan J"'
Autor:
Sicardy, B., Tej, A., Gomes-Junior, A. R., Romanov, F. D., Bertrand, T., Ashok, N. M., Lellouch, E., Morgado, B. E., Assafin, M., Desmars, J., Camargo, J. I. B., Kilic, Y., Ortiz, J. L., Vieira-Martins, R., Braga-Ribas, F., Ninan, J. P., Bhatt, B. C., Kumar, S. Pramod, Swain, V., Sharma, S., Saha, A., Ojha, D. K., Pawar, G., Deshmukh, S., Deshpande, A., Ganesh, S., Jain, J. K., Mathew, S. K., Kumar, H., Bhalerao, V., Anupama, G. C., Barway, S., Brandeker, A., Floren, H. G., Olofsson, G., Bruno, G., Mao, Y. M., Ye, R. H., Zou, Q. Y., Sun, Y. K., Shen, Y. Y., Zhao, J. Y., Grishin, D. N., Romanova, L. V., Marchis, F., Fukui, K., Kukita, R., Benedetti-Rossi, G., Santos-Sanz, P., Dhyani, N., Gokhale, A., Kate, A.
Context - Around the year 2000, Triton's south pole experienced an extreme summer solstice that occurs every about 650 years, when the subsolar latitude reached about 50{\deg}. Bracketing this epoch, a few occultations probed Triton's atmosphere in 1
Externí odkaz:
http://arxiv.org/abs/2402.02476
Autor:
Naik, M. B., Ojha, D. K., Ghosh, S. K., Manoj, P., Ninan, J. P., Ghosh, S., D'Costa, S. L. A., Poojary, S. S., Bhagat, S. B., Sandimani, P. R., Shah, H., Jadhav, R. B., Gharat, S. M., Meshram, G. S., Bagade, B. G.
The Infrared Astronomy Group (Department of Astronomy and Astrophysics) at Tata Institute of Fundamental Research (TIFR) is presently developing controllers for the Teledyne HxRG Focal Plane Arrays (FPAs) to be used on board the Infrared Spectroscopi
Externí odkaz:
http://arxiv.org/abs/2203.00202
We explored here the near-infrared $H$-band atmospheric window aiming to provide quantitative diagnostic tools for deriving stellar parameters, for instance, effective temperature ($T_{eff}$) and metallicity ([$Fe/H$]), of cool giants ($T_{eff}$ $<$
Externí odkaz:
http://arxiv.org/abs/2201.05837
Autor:
Susmitha, A., Ojha, D. K., Sivarani, T., Ninan, J. P., Bandyopadhyay, A., Surya, Arun, Unni, Athira
We present the abundance analyses of 7 Carbon enhanced metal-poor (CEMP) stars to understand the origin of carbon in them. We used high-resolution optical spectra to derive abundances of various elements. We also used low-resolution Near-Infrared (NI
Externí odkaz:
http://arxiv.org/abs/2105.08083
Autor:
Suzuki, T., Oyabu, S., Ghosh, S. K., Ojha, D. K., Kaneda, H., Maeda, H., Nakagawa, T., Ninan, J. P., Vig, S., Hanaoka, M., Saito, F., Fujiwara, S., Kanayama, T.
Aims: To investigate properties of [CII]158 $\mu$m emission of RCW36 in a dense filamentary cloud. Methods: [CII] observations of RCW36 covering an area of ~30 arcmin$\times$30 arcmin were carried out with a Fabry-P\'{e}rot spectrometer aboard a 100-
Externí odkaz:
http://arxiv.org/abs/2103.01042
We present here quantitative diagnostic tools for cool giants that employ low-resolution near-infrared spectroscopy in the $K$-band for stellar population studies. In this study, a total of 260 cool giants (177 stars observed with X-shooter and 83 st
Externí odkaz:
http://arxiv.org/abs/2012.10646
Akademický článek
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Autor:
Kanodia, Shubham, Mahadevan, Suvrath, Ramsey, Lawrence. W., Stefansson, Gudmundur K., Monson, Andrew J., Hearty, Frederick R., Blakeslee, Scott, Lubar, Emily, Bender, Chad F., Ninan, J. P., Sterner, David, Roy, Arpita, Halverson, Samuel P., Robertson, Paul M.
Publikováno v:
Proc. of SPIE Vol. 10702 107026Q (2018)
The Habitable-zone Planet Finder (HPF) is a highly stabilized fiber fed precision radial velocity (RV) spectrograph working in the Near Infrared (NIR): 810 - 1280 nm . In this paper we present an overview of the preparation of the optical fibers for
Externí odkaz:
http://arxiv.org/abs/1808.00557
Autor:
Baug, T., Ojha, D. K., Ghosh, S. K., Sharma, S., Pandey, A. K., Kumar, Brijesh, Ghosh, Arpan, Ninan, J. P., Naik, M. B., D'Costa, S. L. A., Poojary, S. S., Sandimani, P. R., Shah, H., Reddy, B. Krishna, Pandey, S. B., Chand, H.
TIFR Near Infrared Imaging Camera-II is a closed-cycle Helium cryo-cooled imaging camera equipped with a Raytheon 512 x 512 pixels InSb Aladdin III Quadrant focal plane array having sensitivity to photons in the 1-5 microns wavelength band. In this p
Externí odkaz:
http://arxiv.org/abs/1802.05008
The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
Autor:
The Astropy Collaboration, Price-Whelan, A. M., Sipőcz, B. M., Günther, H. M., Lim, P. L., Crawford, S. M., Conseil, S., Shupe, D. L., Craig, M. W., Dencheva, N., Ginsburg, A., VanderPlas, J. T., Bradley, L. D., Pérez-Suárez, D., de Val-Borro, M., Aldcroft, T. L., Cruz, K. L., Robitaille, T. P., Tollerud, E. J., Ardelean, C., Babej, T., Bachetti, M., Bakanov, A. V., Bamford, S. P., Barentsen, G., Barmby, P., Baumbach, A., Berry, K. L., Biscani, F., Boquien, M., Bostroem, K. A., Bouma, L. G., Brammer, G. B., Bray, E. M., Breytenbach, H., Buddelmeijer, H., Burke, D. J., Calderone, G., Rodríguez, J. L. Cano, Cara, M., Cardoso, J. V. M., Cheedella, S., Copin, Y., Crichton, D., DÁvella, D., Deil, C., Depagne, É., Dietrich, J. P., Donath, A., Droettboom, M., Earl, N., Erben, T., Fabbro, S., Ferreira, L. A., Finethy, T., Fox, R. T., Garrison, L. H., Gibbons, S. L. J., Goldstein, D. A., Gommers, R., Greco, J. P., Greenfield, P., Groener, A. M., Grollier, F., Hagen, A., Hirst, P., Homeier, D., Horton, A. J., Hosseinzadeh, G., Hu, L., Hunkeler, J. S., Ivezić, Ž., Jain, A., Jenness, T., Kanarek, G., Kendrew, S., Kern, N. S., Kerzendorf, W. E., Khvalko, A., King, J., Kirkby, D., Kulkarni, A. M., Kumar, A., Lee, A., Lenz, D., Littlefair, S. P., Ma, Z., Macleod, D. M., Mastropietro, M., McCully, C., Montagnac, S., Morris, B. M., Mueller, M., Mumford, S. J., Muna, D., Murphy, N. A., Nelson, S., Nguyen, G. H., Ninan, J. P., Nöthe, M., Ogaz, S., Oh, S., Parejko, J. K., Parley, N., Pascual, S., Patil, R., Patil, A. A., Plunkett, A. L., Prochaska, J. X., Rastogi, T., Janga, V. Reddy, Sabater, J., Sakurikar, P., Seifert, M., Sherbert, L. E., Sherwood-Taylor, H., Shih, A. Y., Sick, J., Silbiger, M. T., Singanamalla, S., Singer, L. P., Sladen, P. H., Sooley, K. A., Sornarajah, S., Streicher, O., Teuben, P., Thomas, S. W., Tremblay, G. R., Turner, J. E. H., Terrón, V., van Kerkwijk, M. H., de la Vega, A., Watkins, L. L., Weaver, B. A., Whitmore, J. B., Woillez, J., Zabalza, V.
The Astropy project supports and fosters the development of open-source and openly-developed Python packages that provide commonly-needed functionality to the astronomical community. A key element of the Astropy project is the core package Astropy, w
Externí odkaz:
http://arxiv.org/abs/1801.02634