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Physical Sciences and Mathematics Commons™
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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
The Warps Survey - Iv. The X-Ray Luminosity-Temperature Relation Of High-Redshift Galaxy Clusters, B. W. Fairley, L. R. Jones, C. Scharf, H. Ebeling, E. Perlman, D. Horner, G. Wegner, M. Malkan
The Warps Survey - Iv. The X-Ray Luminosity-Temperature Relation Of High-Redshift Galaxy Clusters, B. W. Fairley, L. R. Jones, C. Scharf, H. Ebeling, E. Perlman, D. Horner, G. Wegner, M. Malkan
Dartmouth Scholarship
We present a measurement of the cluster X-ray luminosity-temperature (L-T) relation out to high redshift (z∼0.8). Combined ROSAT PSPC spectra of 91 galaxy clusters detected in the Wide Angle ROSAT Pointed Survey (WARPS) are simultaneously fitted in redshift and luminosity bins. The resulting temperature and luminosity measurements of these bins, which occupy a region of the high-redshift L-T relation not previously sampled, are compared with existing measurements at low redshift in order to constrain the evolution of the L-T relation. We find the best fit to low-redshift (z<0.2) cluster data, at T …
2mass Extended Sources In The Zone Of Avoidance, T. H. Jarrett, T. Chester, R. Cutri, S. Schneider, J. Rosenberg, J. P. Huchra, J. Mader
2mass Extended Sources In The Zone Of Avoidance, T. H. Jarrett, T. Chester, R. Cutri, S. Schneider, J. Rosenberg, J. P. Huchra, J. Mader
Astronomy Department Faculty Publication Series
No abstract provided.
2mass Extended Source Catalog: Overview And Algorithms, T. H. Jarrett, T. Chester, R. Cutri, S. Schneider, M. Skrutskie, J. P. Huchra
2mass Extended Source Catalog: Overview And Algorithms, T. H. Jarrett, T. Chester, R. Cutri, S. Schneider, M. Skrutskie, J. P. Huchra
Astronomy Department Faculty Publication Series
No abstract provided.
A Global Photometric Analysis Of 2mass Calibration Data, S Nikolaev, Md Weinberg, Mf Skrutskie, Rm Cutri, Sl Wheelock, Je Gizis, Em Howard
A Global Photometric Analysis Of 2mass Calibration Data, S Nikolaev, Md Weinberg, Mf Skrutskie, Rm Cutri, Sl Wheelock, Je Gizis, Em Howard
Astronomy Department Faculty Publication Series
We present results from the application of a global photometric calibration (GPC) procedure to calibration data from the first 2 years of the Two Micron All Sky Survey (2MASS). The GPC algorithm uses photometry of both primary standards and moderately bright "tracer" stars in 35 2MASS calibration fields. During the first 2 years of the survey, each standard was observed on approximately 50 nights, with about 900 individual measurements. Based on the photometry of primary standard stars and secondary tracer stars and under the assumption that the nightly zero-point drift is linear, the GPC ties together all calibration fields and …