- UHRA Home
- Browsing by Author
Browsing by Author "Centre for Astrophysics Research"
Now showing items 301-320 of 2334
-
Chromospheric activities and kinematics for solar type dwarfs and subgiants : analysis of the activity distribution and the AVR
Jenkins, J.S.; Murgas, F.; Rojo, P.; Jones, H.R.A.; Day-Jones, A.C.; Jones, M.I.; Clarke, J.R.A.; Ruiz, M.; Pinfield, D.J. (2011)Aims : In this work we present chromospheric activity indices, kinematics, radial-velocities, and rotational velocities for more than 850 FGK-type dwarfs and subgiant stars in the southern hemisphere and test how best to ... -
Chronos: A NIR spectroscopic galaxy survey to probe the most fundamental stages of galaxy evolution
Ferreras, I.; Cropper, M.; Sharples, R.; Bland-Hawthorn, J.; Bruzual, G.; Charlot, S.; Conselice, C. J.; Driver, S.; Dunlop, J.; Hopkins, A. M.; Kaviraj, S.; Kitching, T.; Barbera, F. La; Lahav, O.; Pasquali, A.; Serjeant, S.; Silk, J.; Windhorst, R. (2021-07-18)We propose a dedicated, ultra-deep spectroscopic survey in the near infrared (NIR), that will target a mass-limited sample of galaxies during two of the most fundamental epochs of cosmic evolution: the formation of the ... -
Circular Polarimetry and the line of sight to the Becklin-Neugebauer object
Aitken, D.; Hough, J.; Chrysostomou, A. (2006) -
Circular polarimetry reveals helical magnetic fields in the young stellar object HH 135 136
Chrysostomou, A.; Lucas, P.W.; Hough, J. (2007) -
Circular polarisation in star-forming regions : possible implications for homochirality
Hough, J.; Bailey, J.; Chrysostomou, A.; Gledhill, T.; Lucas, P.W.; Tamura, M.; Clark, S.; Yates, J.A.; Menard, F. (2001) -
Circular polarization in scattered light as a possible biomarker
Sparks, W.; Hough, J.; Kolokolova, L.; Germer, T.A.; Chen, F.; DasSarma, S.; DasSarma, P.; Robb, F.T.; Manset, N.; Reid, I.; Macchetto, F.D.; Martin, W. (2009)Biological molecules exhibit homochirality and are optically active. Therefore, it is possible that the scattering of light by biological molecules might result in a macroscopic signature in the form of circular polarization. ... -
Circular Polarization in Star- Formation Regions : Implications for Biomolecular Homochirality
Bailey, J.; Chrysostomou, A.; Hough, J.; Gledhill, T.; McCall, A.; Clark, S.; Menard, F.; Tamura, M. (1998)Strong infrared circular polarization resulting from dust scattering in reflection nebulae in the Orion OMC-1 star-formation region has been observed. Circular polarization at shorter wavelengths might have been important ... -
A circumstellar disk associated with a massive protostellar object
Jiang, Z.; Tamura, M.; Fukagawa, M.; Hough, J.; Lucas, P.W.; Suto, H.; Ishii, M.; Yang, J. (2005) -
Circumstellar structure of RU Lupi down to au scales
Takami, M.; Bailey, J.; Gledhill, T.; Chrysostomou, A.; Hough, J. (2001-05) -
Classification of compact radio sources in the Galactic plane with supervised machine learning
Riggi, S.; Umana, G.; Trigilio, C.; Bordiu, C.; Bufano, F.; Ingallinera, A.; Cavallaro, F.; Gordon, Y.; Norris, R. P.; Gürkan, G.; Leto, P.; Buemi, C.; Loru, S.; Hopkins, A. M.; Filipović, M. D.; Cecconello, T. (2024-04-01)Generation of science-ready data from processed data products is one of the major challenges in next-generation radio continuum surveys with the Square Kilometre Array (SKA) and its precursors, due to the expected data ... -
A Close Binary Nucleus in the MOST Oxygen-Poor Planetary Nebula PN G135.9 55.9
Tovmassian, G.; Napiwotzki, R.; Richer, M.G.; Stasinska, G.; Fullerton, A.W.; Rauch, T. (2004-11) -
Cloud G074.11+00.11: a stellar cluster in formation
Saajasto, Mika; Harju, Jorma; Juvela, Mika; Tie, Liu; Zhang, Qizhou; Liu, Sheng-Yuan; Hirano, Naomi; Wu, Yuefang; Kim, Kee-Tae; Tatematsu, Ken'ichi; Wang, Ke; Thompson, Mark (2019-10-01)We present molecular line and dust continuum observations of a Planck-detected cold cloud, G074.11+00.11. The cloud consists of a system of curved filaments and a central star-forming clump. The clump is associated with ... -
The cluster environments of radio-loud AGN
Ineson, Judith; Croston, J.H.; Hardcastle, M.J.; Kraft, Ralph; Evans, Daniel; Jarvis, M.J. (Cambridge University Press, 2015)Radio-loud AGN play an important role in galaxy evolution. We need to understand their properties, and the processes that affect their behaviour in order to model galaxy formation and development. We here present preliminary ... -
Cluster richness-mass calibration with cosmic microwave background lensing
Geach, J. E.; Peacock, J.A. (2017-11-01)Identifying galaxy clusters through overdensities of galaxies in photometric surveys is the oldest and arguably the most economic and mass-sensitive detection method, compared to X-ray and Sunyaev-Zel'dovich Effect surveys ... -
Clustering properties of far-infrared sources in Hi-Gal science demonstation phase fields
Billot, N.; Schisano, E.; Pestalozzi, Michele; Molinari, S.; Noriega-Crespo, A.; Mottram, J.C.; Anderson, L.D.; Elia, D.; Stringfellow, G. S.; Thompson, Mark; Polychroni, D.; Testi, L. (2011)We use a minimum spanning tree (MST) algorithm to characterize the spatial distribution of Galactic far-IR sources and derive their clustering properties. We aim to reveal the spatial imprint of different types of star-forming ... -
CO in blue compact and star burst galaxies
Gondhalekar, P.M.; Johansson, L.E.B.; Brosch, N.; Glass, I.; Brinks, E. (1998) -
CO in late-type galaxies within the central region of Abell 1367
Scott, T.C.; Usero, A.; Brinks, E.; Boselli, A.; Cortese, L.; Bravo-Alfaro, H. (2013-02)We present 12CO (J = 1→ 0) and 12CO (J = 2 →1) spectra for 19 bright, late–type galaxies (spirals) in the central region of the galaxy cluster Abell 1367 (z = 0.02) from observations make with the IRAM 30–m telescope. All ... -
CO interferometry of gas-rich spiral galaxies in the outskirts of an intermediate redshift cluster
Geach, J.E.; Smail, I.; Coppin, Kristen; Moran, S.M.; Edge, A.C.; Ellis, R.S. (2009-05-01)We present IRAM Plateau de Bure Interferometer 3-mm observations of CO j(1→ 0) emission in two 24-μm selected starburst galaxies in the outskirts (~2-3,R) of the rich cluster C1 0024+16 (z = 0.395). The galaxies' inferred ... -
CO observations of high-z radio galaxies MRC 2104-242 and MRC 0943-242 : Spectral-line performance of the Compact Array Broadband Backend
Emonts, B.H.C.; Norris, R.P.; Feain, I.; Miley, G.; Sadler, E.M.; Villar-Martin, M.; Mao, M.Y.; Oosterloo, T.A.; Ekers, R.D.; Stevens, J.B.; Wieringa, M. H.; Coppin, Kristen; Tadhunter, C.N. (2011-07-01)We present the first 7-mm observations of two high-redshift, Lyα-bright radio galaxies (MRC 2104-242 and MRC 0943-242) performed with the 2 × 2GHz instantaneous bandwidth of the Compact Array Broadband Backend (CABB) at ... -
The CO-to-H2 Conversion Factor and Dust-to-gas Ratio on Kiloparsec Scales in Nearby Galaxies
Sandstrom, K. M.; Leroy, A. K.; Walter, F.; Bolatto, A. D.; Croxall, K. V.; Draine, B. T.; Wilson, C. D.; Wolfire, M.; Calzetti, D.; Kennicutt, R. C.; Aniano, G.; Donovan Meyer, J.; Usero, A.; Bigiel, F.; Brinks, E.; de Blok, W.J.G.; Crocker, A.; Dale, D.; Engelbracht, C.W.; Galametz, M.; Groves, B.; Hunt, L. K.; Koda, J.; Kreckel, K.; Linz, H.; Meidt, S.; Pellegrini, E.; Rix, H-W.; Roussel, H.; Schinnerer, E.; Schruba, A.; Schuster, K-F.; Skibba, R.; van der Laan, T.; Appleton, P.; Armus, L.; Brandl, B.; Gordon, K.; Hinz, J.; Krause, O.; Montiel, E.; Sauvage, M.; Schmiedeke, A.; Smith, J.D.T.; Vigroux, L. (2013-10)