Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Sambit Roychowdhury"'
Autor:
Jonghwan Rhee, Martin Meyer, Attila Popping, Sabine Bellstedt, Simon P Driver, Aaron S G Robotham, Matthew Whiting, Ivan K Baldry, Sarah Brough, Michael J I Brown, John D Bunton, Richard Dodson, Benne W Holwerda, Andrew M Hopkins, Bärbel S Koribalski, Karen Lee-Waddell, Ángel R López-Sánchez, Jon Loveday, Elizabeth Mahony, Sambit Roychowdhury, Kristóf Rozgonyi, Lister Staveley-Smith
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 518:4646-4671
We present early science results from Deep Investigation of Neutral Gas Origins (DINGO), an HI survey using the Australian Square Kilometre Array Pathfinder (ASKAP). Using ASKAP sub-arrays available during its commissioning phase, DINGO early science
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fa442d3a6d2671c8f0c9dada51eb672
https://doi.org/10.1093/mnras/stac3065
https://doi.org/10.1093/mnras/stac3065
Autor:
Ajay Dev, Simon P Driver, Martin Meyer, Sambit Roychowdhury, Jonghwan Rhee, Adam R H Stevens, P Claudia del Lagos, Joss Bland-Hawthorn, Barbara Catinella, A M Hopkins, Jonathan Loveday, Danail Obreschkow, Steven Phillipps, Aaron S G Robotham
We determine the atomic hydrogen (HI) to halo mass relation (HIHM) using Arecibo Legacy Fast ALFA survey HI data at the location of optically selected groups from the Galaxy and Mass Assembly (GAMA) survey. We make direct HI detections for 37 GAMA gr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43b90c6b0dbc941846db9ee312edfa8a
http://arxiv.org/abs/2305.12750
http://arxiv.org/abs/2305.12750
Autor:
Rajeshwari Dutta, Sushma Kurapati, J. N. H. S. Aditya, Omkar Bait, Mousumi Das, Prasun Dutta, K. Indulekha, Meera Nandakumar, Narendra Nath Patra, Nirupam Roy, Sambit Roychowdhury
Publikováno v:
Journal of Astrophysics and Astronomy. 43
One of the major science goals of the Square Kilometre Array (SKA) is to understand the role played by atomic hydrogen (HI) gas in the evolution of galaxies throughout cosmic time. The hyperfine transition line of the hydrogen atom at 21-cm is one of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d43ef1899058c9916c1cc4402466a6fc
https://doi.org/10.1007/s12036-022-09875-y
https://doi.org/10.1007/s12036-022-09875-y
Autor:
Viviana Casasola, Simone Bianchi, Laura Magrini, Aleksandr V. Mosenkov, Francesco Salvestrini, Maarten Baes, Francesco Calura, Letizia P. Cassarà, Christopher J. R. Clark, Edvige Corbelli, Jacopo Fritz, Frédéric Galliano, Elisabetta Liuzzo, Suzanne Madden, Angelos Nersesian, Francesca Pozzi, Sambit Roychowdhury, Ivano Baronchelli, Matteo Bonato, Carlotta Gruppioni, Lara Pantoni
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2022, 668 (A130), 38p. ⟨10.1051/0004-6361/202245043⟩
ASTRONOMY & ASTROPHYSICS
Astronomy and Astrophysics-A&A, 2022, 668 (A130), 38p. ⟨10.1051/0004-6361/202245043⟩
ASTRONOMY & ASTROPHYSICS
We perform a homogeneous analysis of an unprecedented set of spatially resolved scaling relations (SRs) between ISM components and other properties in the range of scales 0.3-3.4 kpc. We also study some ratios: dust-to-stellar, dust-to-gas, and dust-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c091a29aee7acd9f8190151030da8994
http://arxiv.org/abs/2210.15993
http://arxiv.org/abs/2210.15993
Autor:
Bumhyun Lee, Jing Wang, Aeree Chung, Luis C. Ho, Ran Wang, Tomonari Michiyama, Juan Molina, Yongjung Kim, Li Shao, Virginia Kilborn, Shun Wang, Xuchen Lin, Dawoon E. Kim, Barbara Catinella, Luca Cortese, Nathan Deg, Helga Denes, Ahmed Elagali, Bi-Qing For, Dane Kleiner, Bärbel S. Koribalski, Karen Lee-Waddell, Jonghwan Rhee, Kristine Spekkens, Tobias Westmeier, O. Ivy Wong, Frank Bigiel, Albert Bosma, Benne W. Holwerda, Jan M. van der Hulst, Sambit Roychowdhury, Lourdes Verdes-Montenegro, Martin A. Zwaan
Publikováno v:
The Astrophysical Journal Supplement Series
The Astrophysical Journal Supplement Series, 2022, 262, ⟨10.3847/1538-4365/ac7eba⟩
The Astrophysical Journal Supplement Series, 262(1):31. IOP PUBLISHING LTD
Digital.CSIC. Repositorio Institucional del CSIC
instname
The Astrophysical Journal Supplement Series, 2022, 262, ⟨10.3847/1538-4365/ac7eba⟩
The Astrophysical Journal Supplement Series, 262(1):31. IOP PUBLISHING LTD
Digital.CSIC. Repositorio Institucional del CSIC
instname
Full list of authors: Lee, Bumhyun; Wang, Jing; Chung, Aeree; Ho, Luis C.; Wang, Ran; Michiyama, Tomonari; Molina, Juan; Kim, Yongjung; Shao, Li; Kilborn, Virginia; Wang, Shun; Lin, Xuchen; Kim, Dawoon E.; Catinella, Barbara; Cortese, Luca; Deg, Nath
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d97547efa6409b65f957fb2ae87b83e
Autor:
Sambit Roychowdhury, Martin J. Meyer, Jonghwan Rhee, Martin A. Zwaan, Garima Chauhan, Luke J. M. Davies, Sabine Bellstedt, Simon P. Driver, Claudia del P. Lagos, Aaron S. G. Robotham, Joss Bland-Hawthorn, Richard Dodson, Benne W. Holwerda, Andrew M. Hopkins, Maritza A. Lara-López, Ángel R. López-Sánchez, Danail Obreschkow, Kristof Rozgonyi, Matthew T. Whiting, Angus H. Wright
We measure how the atomic gas (HI) fraction ($f_{HI}={\rm \frac{M_{HI}}{M_{*}}}$) of groups and pairs taken as single units vary with average stellar mass ($\langle {\rm M_*} \rangle$) and average star-formation rate ($\langle {\rm SFR} \rangle$), co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff1513df7ff386c068f96fd396fe9bcd
Autor:
Carlos A. Wuensche, Thyrso Villela, Elcio Abdalla, Vincenzo Liccardo, Frederico Vieira, Ian Browne, Michael W. Peel, Christopher Radcliffe, Filipe B. Abdalla, Alessandro Marins, Luciano Barosi, Francisco A. Brito, Amilcar R. Queiroz, Bin Wang, Andre A. Costa, Elisa G. M. Ferreira, Karin S.F. Fornazier, Ricardo G. Landim, Camila P. Novaes, Larissa Santos, Marcelo V. dos Santos, Jiajun Zhang, Tianyue Chen, Jacques Delabrouille, Clive Dickinson, Giancarlo de Gasperis, Edmar C. Gurjão, Stuart Harper, Yin-Zhe Ma, Telmo Machado, Bruno Maffei, Eduardo J. de Mericia, Christian Monstein, Pablo Motta, Carlos H. N. Otobone, Luiz A. Reitano, Mathieu Remazeilles, Sambit Roychowdhury, João R. L. Santos, Alexandre J. R. Serres, Andreia P. Souza, Cesar Strauss, Jordany Vieira, Haiguang Xu
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2022, 664, pp.A15. ⟨10.1051/0004-6361/202039962⟩
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Astronomy and Astrophysics-A&A, 2022, 664, pp.A15. ⟨10.1051/0004-6361/202039962⟩
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
The measurement of diffuse 21-cm radiation from the hyperfine transition of neutral hydrogen (HI signal) in different redshifts is an important tool for modern cosmology. However, detecting this faint signal with non-cryogenic receivers in single-dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91155c4174cbc3af043164a71f5c36c9
https://doi.org/10.1051/0004-6361/202039962
https://doi.org/10.1051/0004-6361/202039962
Autor:
A. Nersesian, Jacopo Fritz, Anthony P. Jones, Sambit Roychowdhury, Nathalie Ysard, Wouter Dobbels, Letizia, Ilse De Looze, Maarten Baes, P. Cassará, Emmanuel M. Xilouris, Maud Galametz, Aleksandr V. Mosenkov, Suzanne C. Madden, Viviana Casasola, Frédéric Galliano, Simone Bianchi
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 649, pp.A18. ⟨10.1051/0004-6361/202039701⟩
ASTRONOMY & ASTROPHYSICS
Astronomy & Astrophysics
Astronomy and Astrophysics-A&A, 2021, 649, pp.A18. ⟨10.1051/0004-6361/202039701⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 649, pp.A18. ⟨10.1051/0004-6361/202039701⟩
ASTRONOMY & ASTROPHYSICS
Astronomy & Astrophysics
Astronomy and Astrophysics-A&A, 2021, 649, pp.A18. ⟨10.1051/0004-6361/202039701⟩
Methods. We have modelled a sample of ~800 nearby galaxies, spanning a wide range of metallicity, gas fraction, specific star formation rate and Hubble stage. We have derived the dust properties of each object from its spectral energy distribution. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::962ddf63dddd001ed70e6dd34a039850
https://hal.archives-ouvertes.fr/hal-03295995/file/aa39701-20.pdf
https://hal.archives-ouvertes.fr/hal-03295995/file/aa39701-20.pdf
Autor:
Sambit Roychowdhury, M. Arabsalmani, Nissim Kanekar, Palle Møller, Martin Zwaan, Tjitske K. Starkenburg, Frédéric Bournaud, E. Le Floc'h, Johan P. U. Fynbo, Lise Christensen, Elena Pian
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 485 (4), pp.5411-5422. ⟨10.1093/mnras/stz735⟩
Arabsalmani, M, Roychowdhury, S, Starkenburg, T K, Christensen, L, Le Floc’h, E, Kanekar, N, Bournaud, F, Zwaan, M A, Fynbo, J P U, Møller, P & Pian, E 2019, ' The host galaxy of GRB 980425 / SN1998bw: a collisional ring galaxy ', Monthly Notices of the Royal Astronomical Society, vol. 485, no. 4, pp. 5411–5422 . https://doi.org/10.1093/mnras/stz735
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2019, 485 (4), pp.5411-5422. ⟨10.1093/mnras/stz735⟩
Monthly Notices of the Royal Astronomical Society, 2019, 485 (4), pp.5411-5422. ⟨10.1093/mnras/stz735⟩
Arabsalmani, M, Roychowdhury, S, Starkenburg, T K, Christensen, L, Le Floc'h, E, Kanekar, N, Bournaud, F, Zwaan, M A, Fynbo, J P U, Moller, P & Pian, E 2019, ' The host galaxy of GRB 980425/SN1998bw : a collisional ring galaxy ', Monthly Notices of the Royal Astronomical Society, vol. 485, no. 4, pp. 5411-5422 . https://doi.org/10.1093/mnras/stz735
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 485 (4), pp.5411-5422. ⟨10.1093/mnras/stz735⟩
Arabsalmani, M, Roychowdhury, S, Starkenburg, T K, Christensen, L, Le Floc’h, E, Kanekar, N, Bournaud, F, Zwaan, M A, Fynbo, J P U, Møller, P & Pian, E 2019, ' The host galaxy of GRB 980425 / SN1998bw: a collisional ring galaxy ', Monthly Notices of the Royal Astronomical Society, vol. 485, no. 4, pp. 5411–5422 . https://doi.org/10.1093/mnras/stz735
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2019, 485 (4), pp.5411-5422. ⟨10.1093/mnras/stz735⟩
Monthly Notices of the Royal Astronomical Society, 2019, 485 (4), pp.5411-5422. ⟨10.1093/mnras/stz735⟩
Arabsalmani, M, Roychowdhury, S, Starkenburg, T K, Christensen, L, Le Floc'h, E, Kanekar, N, Bournaud, F, Zwaan, M A, Fynbo, J P U, Moller, P & Pian, E 2019, ' The host galaxy of GRB 980425/SN1998bw : a collisional ring galaxy ', Monthly Notices of the Royal Astronomical Society, vol. 485, no. 4, pp. 5411-5422 . https://doi.org/10.1093/mnras/stz735
We report Giant Metrewave Radio Telescope (GMRT) , Very Large Telescope (VLT) and Spitzer Space Telescope observations of ESO 184$-$G82, the host galaxy of GRB 980425/SN 1998bw, that yield evidence of a companion dwarf galaxy at a projected distance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8758489911d5755a1b0e04f09c78ae06
https://hal.archives-ouvertes.fr/hal-02101661
https://hal.archives-ouvertes.fr/hal-02101661
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 631, pp.A115. ⟨10.1051/0004-6361/201936139⟩
Astron.Astrophys.
Astron.Astrophys., 2019, 631, pp.A115. ⟨10.1051/0004-6361/201936139⟩
Roychowdhury, S, Dickinson, C & Browne, I W A 2019, ' A first quantification of the effects of absorption for H I intensity mapping experiments ', Astronomy & Astrophysics . https://doi.org/10.1051/0004-6361/201936139
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 631, pp.A115. ⟨10.1051/0004-6361/201936139⟩
Astron.Astrophys.
Astron.Astrophys., 2019, 631, pp.A115. ⟨10.1051/0004-6361/201936139⟩
Roychowdhury, S, Dickinson, C & Browne, I W A 2019, ' A first quantification of the effects of absorption for H I intensity mapping experiments ', Astronomy & Astrophysics . https://doi.org/10.1051/0004-6361/201936139
HI Intensity Mapping (IM) will be used to do precision cosmology using many existing and upcoming radio observatories. The signal will be contaminated due to absorption, the largest component of which will be the flux absorbed by the HI emitting sour
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42579b1ae35487b52213bcf3988c9968
https://hal.archives-ouvertes.fr/hal-02350222
https://hal.archives-ouvertes.fr/hal-02350222