N. A. Silbermann

The variable stars of the Draco dwarf spheroidal galaxy: revisited (2008)

Kinemuchi, K., Harris, H. C., Smith, Horace A., Silbermann, N. A., Snyder, L. A., LaCluyzé, A. P., ...

We present a CCD survey of variable stars in the Draco dwarf spheroidal galaxy. This survey, which has the largest areal coverage since the original variable star survey by Baade & Swope, includes...

The Variable Stars of the Draco Dwarf Spheroidal Galaxy - Revisited (2008)

Kinemuchi, K., Harris, H. C., Smith, Horace A., Silbermann, N. A., Snyder, L. A., LaCluyze, A. P., ...

We present a CCD survey of variable stars in the Draco dwarf spheroidal galaxy. This survey, which has the largest areal coverage since the original variable star survey by Baade & Swope, includes...

Teh Extragalctic Distance Scale Key Project VII. The Discovery of Cepheids in the Leo I Group Galaxy NGC 3351 Using the Hubble Space Telescope (2004)

Graham, J. A., Phelps, R. L., Freedman, W. L., Saha, A., Ferarese, L., Stetson, P. B., ...

We report on the discovery and properties of Cepheid variable stars in the barred spiral galaxy NGC 3351 which is a member of the LeoI group of galaxies.

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...

The Extragalactic Distance Scale Key Project VIII. The Discovery of Cepheids and a New Distance to NGC 3621 Using the Hubble Space Telescope (2004)

Rawson, D. M., Mould, J. R., Macri, L. M., Huchra, J. P., Kennicutt, R. C., Harding, P., ...

We report on the discovery of Cepheids in the field spiral galaxy NGC3621, based on observations made with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope (HST). NGC 3621 is...

The HST Key Project on the Extragalactic Distance Scale XI. The Cepheids in NGC 4414 (2004)

Ferrarese, L., Saha, A., Bresolin, F., Kennicutt, R. C. Jr., Stetson, P. B., Graham, J. A., ...

We report the discovery of Cepheid variable stars in the galaxy NGC 4414, as part of the Hubble Space Telescope (HST) key project on the Extragalactic Distance Scale.

The HST Key Project on the Extragalactic Distance Scale XX. The Discovery of Cepheids in the Virgo Cluster Galaxy NGC 4548 (2004)

Graham, J. A., Ferrarese, L., Freedman, W. L., Kennicutt, R. C., Mould, J. R., Saha, A., ...

This is one of the galaxies being observed as part of the Hubble Space Telescope (HST) Key Project on the Extragalactic Distance Scale which aims to determine the Hubble Constant to 10% accuracy.

The HST Key Project on the Extragalactic Distance Scale (2004)

Ferrarese, L., Bresolin, F., Kennicutt, R. C. Jr., Saha, A., Stetson, P. B., Freedman, W. L., ...

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).

The HST Key Project on the Extragalactic Distance Scale XI. The Cepheids in NGC 4414 (2004)

Turner, A., Ferrarese, L., Saha, A., Bresolin, F., Kennicutt, R. C. Jr., Stetson, P. B., ...

We report the Discovery of Cepheid variable stars in the galaxy NGC 4414, as part of the Hubble Space Telescope (HST) Key Project on the Extragalactic Distance Scale. Observations were obtained with...

The HST Key Project on the Extragalactic Distance Scale XVII. The Cepheid Distance to the Coma II Group Galaxy NGC 4725 (2004)

Gibson, B. K., Hughes, S. M. G., Stetson, P. B., Ferrarese, L., Ford, H., Freedman, W. L., ...

The distance to NGC 4725 has been derived from Cepheid variables, as part of the Hubble Space Telescope Key Project on the Extragalactic Distance Scale.

The Extragalactic Distance Scale Key Project. XVI. Cepheid Variables in an Inner Field of M101 (2004)

Stetson, P. B., Saha, A., Ferrarese, L., Rawson, D. M., Ford, H. C., Freedman, W. L., ...

We report on the identification of 255 candidate variable stars in a field located some 1.7 from the center of the late-type spiral galaxy M101 = NGC 5457, based on observations made with the Wide...

B,V photometry of variable stars in the northeast arm of the Small Magellanic Cloud (2004)

Silbermann, N. A., Sharpee, B., Stark, M., Pritzl, B., Smith, H., Wilhelm, R., ...

This paper discusses the B and V photometry being obtained for variable stars in the northeast arm of the Small Magellanic Cloud (SMC).

Photometric Recovery of Crowded Stellar Fields Observed with HST/WFPC2 and the Effects of Confusion Noise on the Extragalactic Distance Scale (1999)

Ferrarese, Laura, Silbermann, N. A., Mould, Jeremy R., Stetson, Peter B., Saha, Abhijit, Freedman, Wendy L., ...

We explore the limits of photometric reductions of crowded stellar fields observed with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope. Two photometric procedures, based on...

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 Hubble Constant from the HST Key Project on the Extragalactic Distance Scale (1999)

Ferrarese, Laura, Gibson, Brad, Kelson, Daniel, Sakai, Shoko, Mould, Jeremy, Freedman, Wendy, ...

The final efforts of the HST Key Project on the Extragalactic Distance Scale are presented. Four distance indicators, the Surface Brightness Fluctuation method, the Fundamental Plane for early-type...

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 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 Extragalactic Distance Scale Key Project XVIII. The Discovery of Cepheids and a New Distance to NGC 4535 Using the Hubble Space Telescope (1999)

Macri, L. M., Huchra, J. P., Stetson, P. B., Silbermann, N. A., Freedman, W. L., Kennicutt, R. C., ...

We report on the discovery of Cepheids in the Virgo spiral galaxy NGC 4535, based on observations made with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope. NGC 4535 is one...

The HST Key Project on the Extragalactic Distance Scale XIV. The Cepheids in NGC 1365 (1998)

Silbermann, N. A., Harding, P., Ferrarese, L., Stetson, P. B., Madore, B. F., Kennicutt, R. C., ...

We report the detection of Cepheid variable stars in the barred spiral galaxy NGC 1365, located in the Fornax cluster, using the Hubble Space Telescope Wide Field and Planetary Camera 2. Twelve V...

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...