Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Sardarabadi, A. M."'
Autor:
Gehlot, B. K., Mertens, F. G., Koopmans, L. V. E., Offringa, A. R., Shulevski, A., Mevius, M., Brentjens, M. A., Kuiack, M., Pandey, V. N., Rowlinson, A., Sardarabadi, A. M., Vedantham, H. K., Wijers, R. A. M. J., Yatawatta, S., Zaroubi, S.
The 21-cm absorption feature reported by the EDGES collaboration is several times stronger than that predicted by traditional astrophysical models. If genuine, a deeper absorption may lead to stronger fluctuations on the 21-cm signal on degree scales
Externí odkaz:
http://arxiv.org/abs/2010.02269
Autor:
Mertens, F. G., Mevius, M., Koopmans, L. V. E, Offringa, A. R., Mellema, G., Zaroubi, S., Brentjens, M. A., Gan, H., Gehlot, B. K., Pandey, V. N., Sardarabadi, A. M., Vedantham, H. K., Yatawatta, S., Asad, K. M. B., Ciardi, B., Chapman, E., Gazagnes, S., Ghara, R., Ghosh, A., Giri, S. K., Iliev, I. T., Jelić, V., Kooistra, R., Mondal, R., Schaye, J., Silva, M. B.
A new upper limit on the 21-cm signal power spectrum at a redshift of $z \approx 9.1$ is presented, based on 141 hours of data obtained with the Low-Frequency Array (LOFAR). The analysis includes significant improvements in spectrally-smooth gain-cal
Externí odkaz:
http://arxiv.org/abs/2002.07196
Autor:
Gehlot, B. K., Mertens, F. G., Koopmans, L. V. E., Brentjens, M. A., Zaroubi, S., Ciardi, B., Ghosh, A., Hatef, M., Iliev, I. T., Jelić, V., Kooistra, R., Krause, F., Mellema, G., Mevius, M., Mitra, M., Offringa, A. R., Pandey, V. N., Sardarabadi, A. M., Schaye, J., Silva, M. B., Vedantham, H. K., Yatawatta, S.
Observations of the redshifted 21-cm hyperfine line of neutral hydrogen from early phases of the Universe such as Cosmic Dawn and the Epoch of Reionization promise to open a new window onto the early formation of stars and galaxies. We present the fi
Externí odkaz:
http://arxiv.org/abs/1809.06661
Autor:
Mertens, F. G., Mevius, M., Koopmans, L. V. E., Offringa, A. R., Mellema, G., Zaroubi, S., Brentjens, M. A., Gan, H., Gehlot, B. K., Pandey, V. N., Sardarabadi, A. M., Vedantham, H. K., Yatawatta, S., Asad, K. M. B., Ciardi, B., Chapman, E., Gazagnes, S., Ghara, R., Ghosh, A., Giri, S. K., Iliev, I. T., Jelic, Ratomir, Kooistra, R., Mondal, R., Schaye, J., Silva, M. B.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 493(2), 1662-1685. Oxford University Press
A new upper limit on the 21 cm signal power spectrum at a redshift of z approximate to 9.1 is presented, based on 141 h of data obtained with the Low-Frequency Array (LOFAR). The analysis includes significant improvements in spectrally smooth gain-ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::9600434a840b55475564838a26745bde
https://research.rug.nl/en/publications/ae79707d-7079-45b8-8ef9-c38234f196fe
https://research.rug.nl/en/publications/ae79707d-7079-45b8-8ef9-c38234f196fe
Autor:
Mertens, Florent G., Mevius, M., Koopmans, Leon V. E., Offringa, A. R., Mellema, Garrelt, Zaroubi, Saleem, Brentjens, M. A., Gan, H., Gehlot, Bharat Kumar, Pandey, V. N., Sardarabadi, A. M., Vedantham, Harish K., Yatawatta, Sarod, Asad, Khan M. B., Ciardi, B., Chapman, Emma, Gazagnes, S., Ghara, R., Ghosh, Abhik, Giri, Sambit Kumar, Iliev, Ilian T., Jelić, Vibor, Kooistra, Robin, Mondal, Rajesh, Schaye, Joop, Silva, Marta Bruno
Publikováno v:
Mertens, Florent G. Mevius, M. Koopmans, Leon V. E. Offringa, A. R. Mellema, Garrelt Zaroubi, Saleem Brentjens, M. A. Gan, H. Gehlot, Bharat Kumar Pandey, V. N. Sardarabadi, A. M. Vedantham, Harish K. Yatawatta, Sarod Asad, Khan M. B. Ciardi, B. Chapman, Emma Gazagnes, S. Ghara, R. Ghosh, Abhik Giri, Sambit Kumar Iliev, Ilian T. Jelić, Vibor Kooistra, Robin Mondal, Rajesh Schaye, Joop Silva, Marta Bruno . Improved upper limits on the 21 cm signal power spectrum of neutral hydrogen at z ≈ 9.1 from LOFAR. Monthly notices of the Royal Astronomical Society. 2020, 493(2), 1662-1685
Monthly notices of the Royal Astronomical Society
Monthly notices of the Royal Astronomical Society
Externí odkaz:
http://hdl.handle.net/10852/79326
https://www.duo.uio.no/bitstream/handle/10852/79326/1/staa327.pdf
https://www.duo.uio.no/bitstream/handle/10852/79326/1/staa327.pdf
Akademický článek
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Autor:
Mertens, F G, Mevius, M, Koopmans, L V E, Offringa, A R, Mellema, G, Zaroubi, S, Brentjens, M A, Gan, H, Gehlot, B K, Pandey, V N, Sardarabadi, A M, Vedantham, H K, Yatawatta, S, Asad, K M B, Ciardi, B, Chapman, E, Gazagnes, S, Ghara, R, Ghosh, A, Giri, S K
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Apr2020, Vol. 493 Issue 2, p1662-1685, 24p
Autor:
Gehlot, B K, Mertens, F G, Koopmans, L V E, Brentjens, M A, Zaroubi, S, Ciardi, B, Ghosh, A, Hatef, M, Iliev, I T, Jelić, V, Kooistra, R, Krause, F, Mellema, G, Mevius, M, Mitra, M, Offringa, A R, Pandey, V N, Sardarabadi, A M, Schaye, J, Silva, M B
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Sep2019, Vol. 488 Issue 3, p4271-4287, 17p
Water uptake by a single root of an onion plant (Allium cepa) was measured potentially before, during and following exposure of shoots to an external electric field (EEF). The field strength used was 9kV/m DC and AC (60-Hz) brought about a statistica
Externí odkaz:
https://digital.library.unt.edu/ark:/67531/metadc798049/