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COSMOS: Hubble Space Telescope Observations
Open accessAbstract
The Cosmic Evolution Survey (COSMOS) was initiated with an extensive allocation (590 orbits in Cycles 12-13) using the Hubble Space Telescope ( HST ) for high-resolution imaging. Here we review the characteristics of the HST imaging with the Advanced Camera for Surveys (ACS) and parallel observations with NICMOS and WFPC2. A square field (1.8 deg 2 ) has been imaged with single-orbit ACS I -band F814W exposures with 50% completeness for sources 0.5'' in diameter at I AB = 26.0 mag. The ACS is a key part of the COSMOS survey, providing very high sensitivity and high-resolution (0.09'' FWHM and 0.05'' pixels) imaging and detecting a million objects. These images yield resolved morphologies for several hundred thousand galaxies. The small HST PSF also provides greatly enhanced sensitivity for weak-lensing investigations of the dark matter distribution.
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Cited by
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Metadata
- Authors
- Scoville, N., Abraham, R. G., Aussel, H., Barnes, J. E., Benson, A., Blain, A. W., Calzetti, D., Comastri, A., Capak, P., Carilli, C., Carlstrom, J. E., Carollo, C. M., Colbert, J., Daddi, E., Ellis, R. S., Elvis, M., Ewald, S. P., Fall, M., Franceschini, A., Giavalisco, M., Green, W., Griffiths, R. E., Guzzo, L., Hasinger, G., Impey, C., Kneib, J. ‐., Koda, J., Koekemoer, A., Lefevre, O., Lilly, S., Liu, C. T., McCracken, H. J., Massey, R., Mellier, Y., Miyazaki, S., Mobasher, B., Mould, J., Norman, C., Refregier, A., Renzini, A., Rhodes, J., Rich, M., Sanders, D. B., Schiminovich, D., Schinnerer, E., Scodeggio, M., Sheth, K., Shopbell, P. L., Taniguchi, Y., Tyson, N. D., Urry, C. M., Van Waerbeke, L., Vettolani, P., White, S. D. M., & Yan, L.
- Venue
- The Astrophysical Journal Supplement Series
- Publisher
- American Astronomical Society
- Published
- 2007-09
- Volume
- 172
- Issue
- 1
- Pages
- 38-45
- ISSN
- 0067-0049 (ISSN-L)
- 1538-4365
- OpenAlex
- W2088761263
- Cited by
- 505
- References
- 0
- FWCI
- 21.74
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: COSMOS: Hubble Space Telescope Observations. https://app.cochat.ai/papers/10.1086/516580
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- Scoville, N., Abraham, R. G., Aussel, H., Barnes, J. E., Benson, A., Blain, A. W., Calzetti, D., Comastri, A., Capak, P., Carilli, C., Carlstrom, J. E., Carollo, C. M., Colbert, J., Daddi, E., Ellis, R. S., Elvis, M., Ewald, S. P., Fall, M., Franceschini, A., . . . Yan, L. (2007). COSMOS: Hubble Space Telescope Observations. The Astrophysical Journal Supplement Series. https://doi.org/10.1086/516580
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