Results 1 to 10 of about 232,403 (330)

Photometry as a Proxy for Stellar Activity in Radial Velocity Analyses [PDF]

Astronomical Journal, 2020
Stellar activity remains a limiting factor in measuring precise planet parameters from radial velocity spectroscopy, not least in the search for Earth mass planets orbiting in the habitable zones of Sun-like stars. One approach to mitigate stellar activity is to use combined analyses of both radial velocity and time-series photometry.
Molly R Kosiarek, Ian J M Crossfield
exaly   +6 more sources

DustPedia: Multiwavelength Photometry and Imagery of 875 Nearby Galaxies in 42 Ultraviolet--Microwave Bands [PDF]

A&A 609, A37 (2018), 2017
The DustPedia project is capitalising on the legacy of the Herschel Space Observatory, using cutting-edge modelling techniques to study dust in the 875 DustPedia galaxies - representing the vast majority of extended galaxies within 3000 km s$^{-1}$ that were observed by Herschel.
A. P. Jones, A. V. Mosenkov, Alam, Aniano, Auld, Baes, Baes, Bai, Bendo, Bertin, Bertincourt, Bianchi, Bianchi, Binggeli, Blanton, Blanton, Boselli, Bourne, Brown, Budavári, Burgarella, C. J. R. Clark, Camps, Camps, Casasola, Casey, Ciesla, Ciesla, Clark, Cohen, Cortese, Cortese, da Cunha, Dale, Dale, Davies, Davies, Davies, De Geyter, De Vis, De Vis, Drinkwater, Driver, Driver, Dunne, Eisenstein, Ercolano, Ercolano, Evans, Evans, Fazio, Freedman, Gil de Paz, Greisen, Griffin, Górski, Hall, Hammer, Hammer, Hanisch, Hunter, I. De Looze, J. Fritz, J. I. Davies, Jarrett, Jarrett, Jarrett, Jones, Jones, L. P. Cassara, Lawrence, Lonsdale, M. Baes, M. Galametz, M. W. L. Smith, M. Xilouris, Madden, Mainzer, Makarov, Miville-Deschênes, Morrissey, Mould, Muñoz-Mateos, Neugebauer, Noll, Ochsenbein, P. De Vis, Papovich, Pedregosa, Pilbratt, Planck Collaboration I, Planck Collaboration I, Planck Collaboration II, Planck Collaboration V, Planck Collaboration VII, Planck Collaboration VII, Planck Collaboration XXV, Poglitsch, Querejeta, R. Evans, Rieke, Riess, Robitaille, Roussel, S. Bianchi, S. Lianou, S. Madden, S. Verstocken, S. Viaene, Sanders, Schlafly, Scott, Sheth, Silva, Skrutskie, Smith, Storn, Sérsic, V. Casasola, van der Walt, van der Walt, Wells, Wenger, Werner, Wright, Wright, York, Ysard   +127 more
arxiv   +12 more sources

Galaxy surface photometry [PDF]

Baltic Astron. 8 (1999) 535, 2000
We describe galaxy surface photometry based on fitting ellipses to the isophotes of the galaxies. Example galaxies with different isophotal shapes are used to illustrate the process, including how the deviations from elliptical isophotes are quantified using Fourier expansions.
Jorgensen, Inger, Milvang-Jensen, Bo
arxiv   +8 more sources

The ability of intermediate-band Stromgren photometry to correctly identify dwarf, subgiant, and giant stars and provide stellar metallicities and surface gravities [PDF]

, 2010
[Abridged] Several large scale photometric and spectroscopic surveys are being undertaken to provide a more detailed picture of the Milky Way. Given the necessity of generalisation in the determination of, e.g., stellar parameters when tens and hundred of thousands of stars are considered it remains important to provide independent, detailed studies to
A. S. Árnadóttir, Abazajian, Adén, Adén, Alonso, Alonso, Anthony-Twarog, Anthony-Twarog, Arce, Arellano Ferro, Beers, Bell, Bensby, Bond, Bond, Bonfils, Bonifacio, Calamida, Calamida, Carney, Carollo, Chen, Clausen, Clem, Cohen, Cousins, Crawford, Crawford, Edvardsson, Faria, Favata, Feltzing, Ferguson, Flynn, Gilmore, Grebel, Grundahl, Grønbech, Gustafsson, Gustafsson, Haywood, Heiter, Helmi, Hilker, Holmberg, I. Lundström, Ibata, Ivezic, Johnson, Jønch-Sørensen, Kirby, Kotoneva, Landolt, Lee, Lester, Luck, Malyuto, Martell, Martell, Mermilliod, Mishenina, Nissen, Nordström, Ochsenbein, Olsen, Olsen, Olsen, Olsen, Olsen, Olsen, Perry, Perryman, Ramírez, Ramírez, Ramírez, S. Feltzing, Santos, Santos, Santos, Schlegel, Schuster, Schuster, Schuster, Schuster, Schuster, Schuster, Sousa, Strigari, Strömgren, Strömgren, Thorén, Twarog, Twarog, Valenti, van Leeuwen, Vandenberg, VandenBerg, von Hippel, von Hippel, Woolf, Yasuda, Yong, York, Önehag   +103 more
arxiv   +3 more sources

Extended Photometry for the DEEP2 Galaxy Redshift Survey: A Testbed for Photometric Redshift Experiments [PDF]

Matthews et al. 2013 ApJS 204 21, 2012
This paper describes a new catalog that supplements the existing DEEP2 Galaxy Redshift Survey photometric and spectroscopic catalogs with ugriz photometry from two other surveys; the Canada-France-Hawaii Legacy Survey (CFHTLS) and the Sloan Digital Sky Survey (SDSS).
Coil, Alison L., Cooper, Michael C., Gwyn, Stephen D. J., Matthews, Daniel J., Newman, Jeffrey A.   +4 more
arxiv   +3 more sources

IVOA Recommendation: IVOA Photometry Data Model [PDF]

, 2014
The Photometry Data Model (PhotDM) standard describes photometry filters, photometric systems, magnitude systems, zero points and its interrelation with the other IVOA data models through a simple data model. Particular attention is given necessarily to optical photometry where specifications of magnitude systems and photometric zero points are ...
Allen, Mark, Apellaniz, Jesus Maiz, Baines, Deborah, Derriere, Sebastien, Hatziminaoglou, Evanthia, Lemson, Gerard, Louys, Mireille, McDowell, Jonathan, Osuna, Pedro, Rodrigo, Carlos, Salgado, Jesus   +10 more
arxiv   +4 more sources

Improved GALEX UV Photometry for 700,000 SDSS Galaxies [PDF]

The Astrophysical Journal Supplement Series, 2023
The Galaxy Evolution Explorer (GALEX) satellite performed the first and only large-area UV survey, which in tandem with the Sloan Digital Sky Survey (SDSS) has facilitated modeling of the spectral energy distributions of low-redshift galaxies and the ...
Chandler Osborne, Samir Salim, Médéric Boquien, Mark Dickinson, Stéphane Arnouts   +4 more
doaj   +2 more sources

SPARC: MASS MODELS FOR 175 DISK GALAXIES WITH SPITZER PHOTOMETRY AND ACCURATE ROTATION CURVES [PDF]

Astronomical Journal, 2016
We introduce SPARC (Spitzer Photometry and Accurate Rotation Curves): a sample of 175 nearby galaxies with new surface photometry at 3.6 μm and high-quality rotation curves from previous H i/Hα studies.
Stacy Mcgaugh, Federico Lelli, James M Schombert   +2 more
exaly   +2 more sources

Quantifying the Contamination from nearby Stellar Companions in Gaia DR3 Photometry [PDF]

The Astronomical Journal
Identifying and removing binary stars from stellar samples is a crucial but complicated task. Regardless of how carefully a sample is selected, some binaries will remain and complicate interpretation of results, especially via flux contamination of ...
Kendall Sullivan, Adam L. Kraus, Travis A. Berger, Daniel Huber   +3 more
doaj   +2 more sources

The Three-Dimensional Signal Collection Field for Fiber Photometry in Brain Tissue

Frontiers in Neuroscience, 2019
Fiber photometry is used to monitor signals from fluorescent indicators in genetically-defined neural populations in behaving animals. Recently, fiber photometry has rapidly expanded and it now provides researchers with increasingly powerful means to ...
Marco Pisanello, Filippo Pisano, Minsuk Hyun   +2 more
exaly   +2 more sources