Shaun M. Hughes

The Extragalactic Distance Scale Key Project I. The Discovery Of And A New Distance To M81 Using The (2007)

Space Telescope Freedman, W. L. Freedman, S. M. Hughes, B. F. Madore, J. R. Mould, M. G. Lee, ...

We report on the discovery of 30 new Cepheids in the nearby galaxy M81 based on observations using the Space Telescope The periods for these lie in the range of 10 to 55 days, based on 18 independent...

Shaun M. Hughes, Barry F. Madore (2007)

And Jeremy California, Shaun M. Hughes, Barry F. Madore, Jeremy R. Mould, Laura Ferrarese, C. Ford, ...

The Distance Scale (HO) Key Project for Space Telescope ( aims employ the period-luminosity relation to measure galaxy distances out as far as the Virgo cluster. The vital steps in this program are...

Limits on Hubble Constant from the Distance of M100 (2004)

Mould, Jeremy, Huchra, John P., Bresolin, Fabio, Ferrarese, Laura, Ford, Holland C., Freedman, Wendy L., ...

We examine the consequences of a 17 Mpc M100 distance, questioning its consistency with supernova and other distances.

The HST Key Project on the Extragalactic Distance Scale VI. The Cepheids in NGC925 (2004)

Silbermann, N. A., Harding, Paul, Madore, Barry F., Kennicutt, Robert C. Jr., Saha, Abhijit, Stetson, Peter, ...

We report the detection of Cepheid Variable stars in the barred spiral galaxy NGC925, using the Hubble Space Telescope (HST) Wide Field and Planetary Camera 2 (WFPC2). Twelve V (F555W), four I...

Final results from the Hubble Space Telescope key project to measure the Hubble Constant (2001)

Freedman, Wendy L., Madore, Barry F., Gibson, Brad K., Ferrarese, Laura, Kelson, Daniel D., Sakai, Shoko, ...

We present here the final results of the Hubble Space Telescope (HST) Key Project to measure the Hubble constant. We summarize our method, the results, and the uncertainties, tabulate our revised...

NICMOS observations of extragalactic cepheids. I. photometry database and a test of the standard extinction law (2001)

Macri, Lucas M., Calzetti, Daniela, Freedman, Wendy L., Gibson, Brad K., Graham, John A., Huchra, John P., ...

We present the results of near-infrared observations of extragalactic Cepheids made with the Near-Infrared Camera and Multi-Object Spectrometer on board the Hubble Space Telescope (HST). The...

Final results from the Hubble Space Telescope key project to measure the Hubble Constant (2001)

Freedman, Wendy L., Madore, Barry F., Gibson, Brad K., Ferrarese, Laura, Kelson, Daniel D., Sakai, Shoko, ...

We present here the final results of the Hubble Space Telescope (HST) Key Project to measure the Hubble constant. We summarize our method, the results, and the uncertainties, tabulate our revised...

NICMOS observations of extragalactic cepheids. I. photometry database and a test of the standard extinction law (2001)

Macri, Lucas M., Calzetti, Daniela, Freedman, Wendy L., Gibson, Brad K., Graham, John A., Huchra, John P., ...

We present the results of near-infrared observations of extragalactic Cepheids made with the Near-Infrared Camera and Multi-Object Spectrometer on board the Hubble Space Telescope (HST). The...

Final results from the Hubble Space Telescope key project to measure the Hubble Constant (2001)

Freedman, Wendy L., Madore, Barry F., Gibson, Brad K., Ferrarese, Laura, Kelson, Daniel D., Sakai, Shoko, ...

We present here the final results of the Hubble Space Telescope (HST) Key Project to measure the Hubble constant. We summarize our method, the results, and the uncertainties, tabulate our revised...

NICMOS observations of extragalactic cepheids. I. photometry database and a test of the standard extinction law (2001)

Macri, Lucas M., Calzetti, Daniela, Freedman, Wendy L., Gibson, Brad K., Graham, John A., Huchra, John P., ...

We present the results of near-infrared observations of extragalactic Cepheids made with the Near-Infrared Camera and Multi-Object Spectrometer on board the Hubble Space Telescope (HST). The...

Final results from the Hubble Space Telescope key project to measure the Hubble Constant (2001)

Freedman, Wendy L., Madore, Barry F., Gibson, Brad K., Ferrarese, Laura, Kelson, Daniel D., Sakai, Shoko, ...

We present here the final results of the Hubble Space Telescope (HST) Key Project to measure the Hubble constant. We summarize our method, the results, and the uncertainties, tabulate our revised...

NICMOS observations of extragalactic cepheids. I. photometry database and a test of the standard extinction law (2001)

Macri, Lucas M., Calzetti, Daniela, Freedman, Wendy L., Gibson, Brad K., Graham, John A., Huchra, John P., ...

We present the results of near-infrared observations of extragalactic Cepheids made with the Near-Infrared Camera and Multi-Object Spectrometer on board the Hubble Space Telescope (HST). The...

Final results from the Hubble Space Telescope key project to measure the Hubble Constant (2001)

Freedman, Wendy L., Madore, Barry F., Gibson, Brad K., Ferrarese, Laura, Kelson, Daniel D., Sakai, Shoko, ...

We present here the final results of the Hubble Space Telescope (HST) Key Project to measure the Hubble constant. We summarize our method, the results, and the uncertainties, tabulate our revised...

NICMOS observations of extragalactic cepheids. I. photometry database and a test of the standard extinction law (2001)

Macri, Lucas M., Calzetti, Daniela, Freedman, Wendy L., Gibson, Brad K., Graham, John A., Huchra, John P., ...

We present the results of near-infrared observations of extragalactic Cepheids made with the Near-Infrared Camera and Multi-Object Spectrometer on board the Hubble Space Telescope (HST). The...

A Database of Cepheid Distance Moduli and TRGB, GCLF, PNLF and SBF Data Useful for Distance Determinations (1999)

Ferrarese, Laura, Ford, Holland C., Huchra, John, Kennicutt, Robert C., Mould, Jeremy R., ...

We present a compilation of Cepheid distance moduli and data for four secondary distance indicators that employ stars in the old stellar populations: the planetary nebula luminosity function (PNLF),...

The HST Key Project on the Extragalactic Distance Scale XXVI. The Calibration of Population II Secondary Distance Indicators and the Value of the Hubble Constant (1999)

Ferrarese, Laura, Mould, Jeremy R., Kennicutt, Robert C., Huchra, John, Ford, Holland C., ...

A Cepheid-based calibration is derived for four distance indicators that utilize stars in the old stellar populations: the tip of the red giant branch (TRGB), the planetary nebula luminosity function...

The HST Key Project on the Extragalactic Distance Scale. XXII. The Discovery of Cepheids in NGC 1326-A (1999)

Prosser, Charles F., Kennicutt, Robert C., Bresolin, Fabio, Saha, Abhijit, Sakai, Shoko, ...

We report on the detection of Cepheids and the first distance measurement to the spiral galaxy NGC 1326-A, a member of the Fornax cluster of galaxies. We have employed data obtained with the Wide...

The Hubble Space Telescope Extragalactic Distance Scale Key Project XXIII. The Discovery of Cepheids In NGC 3319 (1999)

Sakai, Shoko, Ferrarese, Laura, Kennicutt, Robert C., Graham, John A., Silbermann, N. A., Mould, Jeremy R., ...

The distance to NGC 3319 has been determined from Cepheid variable stars as part of the Hubble Space Telescope Key Project on the Extragalactic Distance Scale. Thirteen and four epochs of...

The HST Key Project on the Extragalactic Distance Scale XII. The Discovery of Cepheids and a New Distance to NGC 2541 (1998)

Ferrarese, Laura, Bresolin, Fabio, Kennicutt, Robert C., Saha, Abhijit, Stetson, Peter B., ...

We report the detection of Cepheids and a new distance to the spiral galaxy NGC 2541, based on data obtained with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope (HST). A...