Zobrazeno 1 - 10
of 231
pro vyhledávání: '"D. Anish"'
Autor:
Allison J. Smith, D. Anish Roshi
Publikováno v:
The Astrophysical Journal, Vol 948, Iss 1, p 31 (2023)
We present search results of 22 high-latitude (∣ b ∣ > 25°) sightlines for OH 18 cm emission using the 305 m radio telescope at the Arecibo Observatory. These sightlines appear in neutral hydrogen emission at intermediate velocities −90 ≤ V
Externí odkaz:
https://doaj.org/article/b83bf1ce368a4263988bf10ccb4ce708
Autor:
Roshi, D. Anish, Perillat, Phil, Fernandez, Felix, Mani, Hamdi, Perera, Benetge, Manoharan, P. K., Quintero, Luis, Venkataraman, Arun
In this paper we present details of the construction of a wideband, cryogenic receiver and its successful commissioning on the Arecibo 12m telescope. The cryogenic receiver works in the 2.5-14 GHz frequency range. The telescope is operated by the Are
Externí odkaz:
http://arxiv.org/abs/2308.05826
Autor:
Roshi, D. Anish, Marshall, Sean, Vishwas, Amit, Sulzer, Mike, Manoharan, P. K., Devogele, Maxime, Venditti, Flaviane, Smith, Allison, Vaddi, Sravani, Venkataraman, Arun, Perillat, Phil, Brisset, Julie
The Next Generation Arecibo Telescope (NGAT) was a concept presented in a white paper Roshi et al. (2021) developed by members of the Arecibo staff and user community immediately after the collapse of the 305 m legacy telescope. A phased array of sma
Externí odkaz:
http://arxiv.org/abs/2305.07780
Autor:
Smith, Allison, Roshi, D. Anish
We present search results of 22 high latitude (b > 25 deg.) sightlines for OH 18-cm emission using the 305-m radio telescope at the Arecibo Observatory. These sightlines appear in neutral hydrogen emission at intermediate velocities (V_lsr values ran
Externí odkaz:
http://arxiv.org/abs/2302.10956
Autor:
Roshi, D. Anish, Peters, W. M., Emig, K. L., Salas, P., Oonk, J. B. R., Lebrón, M. E., Dickey, J. M.
We present results from a search for radio recombination lines in three HI self-absorbing (HISA) clouds at 750 MHz and 321 MHz with the Robert C. Byrd Green Bank Telescope (GBT), and in three Galactic Plane positions at 327 MHz with the Arecibo Teles
Externí odkaz:
http://arxiv.org/abs/2111.01985
Autor:
Perera, B. B. P., Smith, A. J., Vaddi, S., Carballo-Rubio, R., McGilvray, A., Venkataraman, A., Roshi, D. Anish, Manoharan, P. K., Perillat, P., Lieb, E., Lorimer, D. R., McLaughlin, M. A., Agarwal, D., Aggarwal, K., Ransom, S. M.
We conducted a drift-scan observation campaign using the 305-m Arecibo telescope in January and March 2020 when the observatory was temporarily closed during the intense earthquakes and the initial outbreak of the COVID-19 pandemic, respectively. The
Externí odkaz:
http://arxiv.org/abs/2110.14698
Autor:
Smith, Allison J., Roshi, D. Anish, Manoharan, Periasamy, Vaddi, Sravani, Perera, Benetge B. P., McGilvray, Anna
We report the detection of emission from the OH 18 cm $\Lambda$-doublet transitions toward Comet C/2020 F3 NEOWISE using the Arecibo Telescope. The antenna temperatures are 113$\pm$3 mK for the 1667 MHz line and 57$\pm$3 mK for the 1665 MHz line. The
Externí odkaz:
http://arxiv.org/abs/2105.03510
Autor:
Roshi, D. Anish, Aponte, N., Araya, E., Arce, H., Baker, L. A., Baan, W., Becker, T. M., Breakall, J. K., Brown, R. G., Brum, C. G. M., Busch, M., Campbell, D. B., Cohen, T., Cordova, F., Deneva, J. S., Devogele, M., Dolch, T., Fernandez-Rodriguez, F. O., Ghosh, T., Goldsmith, P. F., Gurvits, L. I., Haynes, M., Heiles, C., Hessel, J. W. T., Hickson, D., Isham, B., Kerr, R. B., Kelly, J., Kiriazes, J. J., Lautenbach, J., Lebron, M., Lewandowska, N., Magnani, L., Manoharan, P. K., Margot, J. L., Marshall, S. E., McGilvray, A. K., Mendez, A., Minchin, R., Negron, V., Nolan, M. C., Olmi, L., Paganelli, F., Palliyaguru, N. T., Pantoja, C. A., Paragi, Z., Parshley, S. C., Peek, J. E. G., Perera, B. B. P., Perillat, P., Pinilla-Alonso, N., Quintero, L., Radovan, H., Raizada, S., Robishaw, T., Route, M., Salter, C. J., Santoni, A., Santos, P., Sau, S., Selvaraj, D., Smith, A. J., Sulzer, M., Vaddi, S., Vargas, F., Venditti, F. C. F., Venkataraman, A., Verkouter, H., Virkki, A. K., Vishwas, A., Weinreb, S., Werthimer, D., Wolszczan, A., Zambrano-Marin, L. F.
The Arecibo Observatory (AO) is a multidisciplinary research and education facility that is recognized worldwide as a leading facility in astronomy, planetary, and atmospheric and space sciences. AO's cornerstone research instrument was the 305-m Wil
Externí odkaz:
http://arxiv.org/abs/2103.01367
Autor:
Pingel, N. M., Pisano, D. J., Ruzindana, M., Burnett, M., Rajwade, K. M., Black, R., Jeffs, B., Lorimer, D. R., Roshi, D. Anish, Prestage, R., McLaughlin, M. A., Agarwal, D., Chamberlin, T., Hawkins, L., Jensen, L., Marganian, P., Nelson, J. D., Shillue, W., Smith, E., Simon, B., Van Tonder, V., White, S.
We present the results of commissioning observations for a new digital beamforming back end for the Focal plane L-band Array for the Robert C. Byrd Green Bank Telescope (FLAG), a cryogenically cooled Phased Array Feed (PAF) with the lowest measured T
Externí odkaz:
http://arxiv.org/abs/2101.10345
Autor:
Jan, Mishaal. I., Roshi, D. Anish, Lebrón, M. E., Pacheco, E., Ghosh, T., Salter, C. J., Minchin, R., Araya, E. D., Arce, H. G.
We observed radio recombination lines (RRLs) toward the W51 molecular cloud complex, one of the most active star forming regions in our Galaxy. The UV radiation from young massive stars ionizes gas surrounding them to produce HII regions. Observation
Externí odkaz:
http://arxiv.org/abs/1912.04019