Search Results - "Kourkchi, Ehsan"

Cosmicflows-4: The Calibration of Optical and Infrared Tully-Fisher Relations by Kourkchi, Ehsan, Tully, R. Brent, Anand, Gagandeep S., Courtois, Hélène M., Dupuy, Alexandra, Neill, James D., Rizzi, Luca, Seibert, Mark

“…This study is a part of the Cosmicflows-4 project with the aim of measuring the distances of more than ∼10,000 spiral galaxies in the local universe up to…”
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Distances to PHANGS galaxies: New tip of the red giant branch measurements and adopted distances by Anand, Gagandeep S, Lee, Janice C, Van Dyk, Schuyler D, Leroy, Adam K, Rosolowsky, Erik, Schinnerer, Eva, Larson, Kirsten, Kourkchi, Ehsan, Kreckel, Kathryn, Scheuermann, Fabian, Rizzi, Luca, Thilker, David, Tully, R Brent, Bigiel, Frank, Blanc, Guillermo A, Boquien, Médéric, Chandar, Rupali, Dale, Daniel, Emsellem, Eric, Deger, Sinan, Glover, Simon C O, Grasha, Kathryn, Groves, Brent, S. Klessen, Ralf, Kruijssen, J M Diederik, Querejeta, Miguel, Sánchez-Blázquez, Patricia, Schruba, Andreas, Turner, Jordan, Ubeda, Leonardo, Williams, Thomas G, Whitmore, Brad

“…ABSTRACT PHANGS-HST is an ultraviolet-optical imaging survey of 38 spiral galaxies within ∼20 Mpc. Combined with the PHANGS-ALMA, PHANGS-MUSE surveys and other…”
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Cosmicflows-4 by Tully, R. Brent, Kourkchi, Ehsan, Courtois, Hélène M., Anand, Gagandeep S., Blakeslee, John P., Brout, Dillon, Jaeger, Thomas de, Dupuy, Alexandra, Guinet, Daniel, Howlett, Cullan, Jensen, Joseph B., Pomarède, Daniel, Rizzi, Luca, Rubin, David, Said, Khaled, Scolnic, Daniel, Stahl, Benjamin E.

“…Abstract With Cosmicflows- 4, distances are compiled for 55,877 galaxies gathered into 38,065 groups. Eight methodologies are employed, with the largest…”
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Cosmicflows-4: The Catalog of ∼10,000 Tully-Fisher Distances by Kourkchi, Ehsan, Tully, R. Brent, Eftekharzadeh, Sarah, Llop, Jordan, Courtois, Hélène M., Guinet, Daniel, Dupuy, Alexandra, Neill, James D., Seibert, Mark, Andrews, Michael, Chuang, Juana, Danesh, Arash, Gonzalez, Randy, Holthaus, Alexandria, Mokelke, Amber, Schoen, Devin, Urasaki, Chase

“…We present the distances of 9792 spiral galaxies lying within 15,000 km s−1 using the relation between luminosity and rotation rate of spiral galaxies. The…”
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The First Empirical Determination of the Fe10+ and Fe13+ Freeze-in Distances in the Solar Corona by Boe, Benjamin, Habbal, Shadia, Druckmüller, Miloslav, Landi, Enrico, Kourkchi, Ehsan, Ding, Adalbert, Starha, Pavel, Hutton, Joseph

“…Heavy ions are markers of the physical processes responsible for the density and temperature distribution throughout the fine-scale magnetic structures that…”
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Ultraviolet tails and trails in cluster galaxies: a sample of candidate gaseous stripping events in Coma by Smith, Russell J., Lucey, John R., Hammer, Derek, Hornschemeier, Ann E., Carter, David, Hudson, Michael J., Marzke, Ronald O., Mouhcine, Mustapha, Eftekharzadeh, Sareh, James, Phil, Khosroshahi, Habib, Kourkchi, Ehsan, Karick, Arna

“…We have used new deep observations of the Coma cluster from Galaxy Evolution Explorer to visually identify 13 star-forming galaxies with asymmetric…”
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The TRGB-SBF Project. I. A Tip of the Red Giant Branch Distance to the Fornax Cluster with JWST by Anand, Gagandeep S., Tully, R. Brent, Cohen, Yotam, Makarov, Dmitry I., Makarova, Lidia N., Jensen, Joseph B., Blakeslee, John P., Cantiello, Michele, Kourkchi, Ehsan, Raimondo, Gabriella

“…Abstract Differences between the local value of the Hubble constant measured via the distance ladder versus the value inferred from the cosmic microwave…”
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Mapping Daily Air Temperature Over the Hawaiian Islands From 1990 to 2021 via an Optimized Piecewise Linear Regression Technique by Kodama, Keri M., Kourkchi, Ehsan, Longman, Ryan J., Lucas, Matthew P., Bateni, Sayed M., Huang, Yu‐Fen, Kagawa‐Viviani, Aurora, Mclean, Jared, Cleveland, Sean B., Giambelluca, Thomas W.

“…Gridded air temperature data are required in various fields such as ecological modeling, weather forecasting, and surface energy balance assessment. In this…”
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Galaxy Groups Within 3500 km s{sup −1} by Kourkchi, Ehsan, Tully, R. Brent

“…A study of the group properties of galaxies in our immediate neighborhood provides a singular opportunity to observationally constrain the halo mass function,…”
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Analysing the large-scale bulk flow using cosmicflows4: increasing tension with the standard cosmological model by Watkins, Richard, Allen, Trey, Bradford, Collin James, Ramon, Albert, Walker, Alexandra, Feldman, Hume A, Cionitti, Rachel, Al-Shorman, Yara, Kourkchi, Ehsan, Tully, R Brent

“…ABSTRACT We present an estimate of the bulk flow in a volume of radii 150−200 h−1 Mpc using the minimum variance method with data from the CosmicFlows-4 (CF4)…”
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Cosmicflows-4: the baryonic Tully–Fisher relation providing ∼10 000 distances by Kourkchi, Ehsan, Tully, R Brent, Courtois, Hélène M, Dupuy, Alexandra, Guinet, Daniel

“…ABSTRACT The interstellar gas in spiral galaxies can constitute a significant fraction of the baryon mass and it has been demonstrated that the sum of stellar…”
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DRAINING THE LOCAL VOID by Rizzi, Luca, Tully, R. Brent, Shaya, Edward J., Kourkchi, Ehsan, Karachentsev, Igor D.

“…ABSTRACT Two galaxies that lie deep within the Local Void provide a test of the expectation that voids expand. The modest ( M B ∼ − 14 ) HI bearing dwarf…”
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Global Attenuation in Spiral Galaxies in Optical and Infrared Bands by Kourkchi, Ehsan, Tully, R. Brent, Neill, J. Don, Seibert, Mark, Courtois, Hélène M., Dupuy, Alexandra

“…The emerging light from a galaxy is under the influence of its own interstellar medium, as well as its spatial orientation. Considering a sample of 2239 local…”
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Galaxy Groups Within 3500 km s−1 by Kourkchi, Ehsan, Tully, R. Brent

“…A study of the group properties of galaxies in our immediate neighborhood provides a singular opportunity to observationally constrain the halo mass function,…”
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Recovering the Structure and Dynamics of the Local Universe by Kourkchi, Ehsan

“…Cosmicflows is an ambitious program to map the velocity and density fields of the nearby universe. The current dissertation is a part of the Cosmicflows-4…”
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The First Empirical Determination of the Fe 10+ and Fe 13+ Freeze-in Distances in the Solar Corona by Boe, Benjamin, Habbal, Shadia, Druckmüller, Miloslav, Landi, Enrico, Kourkchi, Ehsan, Ding, Adalbert, Starha, Pavel, Hutton, Joseph

“…Abstract Heavy ions are markers of the physical processes responsible for the density and temperature distribution throughout the fine-scale magnetic…”
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PROBING THE LOCAL BUBBLE WITH DIFFUSE INTERSTELLAR BANDS. II. THE DIB PROPERTIES IN THE NORTHERN HEMISPHERE by Farhang, Amin, Khosroshahi, Habib G, Javadi, Atefeh, van Loon, Jacco Th, Bailey, Mandy, Molaeinezhad, Alireza, Tavasoli, Saeed, Habibi, Farhang, Kourkchi, Ehsan, Rezaei, Sara, Saberi, Maryam, Hardy, Liam

“…We present a new high signal-to-noise ratio spectroscopic survey of the Northern hemisphere to probe the Local Bubble and its surroundings using the…”
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Ultraviolet tails and trails in cluster galaxies: a sample of candidate gaseous stripping events in Coma: Gaseous stripping candidates in Coma by Smith, Russell J., Lucey, John R., Hammer, Derek, Hornschemeier, Ann E., Carter, David, Hudson, Michael J., Marzke, Ronald O., Mouhcine, Mustapha, Eftekharzadeh, Sareh, James, Phil, Khosroshahi, Habib, Kourkchi, Ehsan, Karick, Arna

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Ultraviolet tails and trails in cluster galaxies: a sample of candidate gaseous stripping events in Coma by Smith, Russell J., Lucey, John R., Hammer, Derek, Hornschemeier, Ann E., Carter, David, Hudson, Michael J., Marzke, Ronald O., Mouhcine, Mustapha, Eftekharzadeh, Sareh, James, Phil, Khosroshahi, Habib, Kourkchi, Ehsan, Karick, Arna

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Identification of Basins of Attraction in the Local Universe by Valade, Aurelien, Libeskind, Noam I, Pomarede, Daniel, Tully, R. Brent, Hoffmann, Yehuda, Pfeifer, Simon, Kourkchi, Ehsan

“…Structure in the Universe is believed to have evolved out of quantum fluctuations seeded by inflation in the early Universe. These fluctuations lead to density…”
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