Search Results - "Georgiev, Leonid"

A multiwavelength view on the dusty Wolf–Rayet star WR 48a by Zhekov, Svetozar A, Tomov, Toma, Gawronski, Marcin P, Georgiev, Leonid N, Borissova, Jura, Kurtev, Radostin, Gagne, Marc, Hajduk, Marcin

“…We present results from the first attempts to derive various physical characteristics of the dusty Wolf-Rayet (WR) star WR 48a based on a multiwavelength view…”
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Iron Depletion in the Hot Bubbles in Planetary Nebulae by Georgiev, Leonid N, Richer, Michael G, Arrieta, Anabel, Zhekov, Svetozar A

“…We have searched for the emission from [Fe X] l6374 and [Fe XIV] l5303 that is expected from the gas emitting in diffuse X-rays in BD +303639, NGC 6543, NGC…”
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Influence of solar luminosity over geomagnetic and climatic cycles as derived from speleothems by Shopov, Y., Stoykova, D., Tsankov, L., Sanabria, M., Georgieva, D., Ford, D., Georgiev, L.

“…We observed cycles presented in a luminescent solar insolation proxy record from a speleothem from Jewel Cave, South Dakota, US. We found cycles of orbital…”
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ALMA and RATIR observations of GRB 131030A by Huang, Kuiyun, Urata, Yuji, Takahashi, Satoko, Im, Myungshin, Yu, Po-Chieh, Choi, Changsu, Butler, Nathaniel, Watson, Alan M., Kutyrev, Alexander, Lee, William H., Klein, Chris, Fox, Ori D., Littlejohns, Owen, Cucchiara, Nino, Troja, Eleonora, González, Jesús, Richer, Michael G., Román-Zúñiga, Carlos, Bloom, Josh, Prochaska, J. Xavier, Gehrels, Neil, Moseley, Harvey, Georgiev, Leonid, de Diego, José A., Ramirez-Ruiz, Enrico

“…Abstract We report on the first open-use based Atacama Large Millimeter/submm Array (ALMA) 345 GHz observation for the late afterglow phase of GRB 131030A. The…”
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THE DISCREPANT KINEMATICS OF ORLs AND CELs IN NGC 7009 AS A FUNCTION OF IONIZATION STRUCTURE by Richer, Michael G, Georgiev, Leonid, Arrieta, Anabel, TORRES-PEIMBERT, SILVIA

“…We present spatially and velocity-resolved echelle spectroscopy for NGC 7009 obtained with the UVES spectrograph at the European Southern Observatory's Very…”
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Verification of the causes of glaciations and sea level changes using the records of calcite speleothems by Shopov Yavor Y., Stoykova Diana, Tsankov Ludmil, Sanabria Michael, Lundberg Joyce, Georgiev Leonid, Forti Paolo, Georgieva Desislava

“…The luminescence of calcite speleothems displays an exponential dependence on soil temperature unless there is a dense cover of forest over the cave to dampen…”
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The Photospheric Absorption Lines in the Ultraviolet Spectrum of the Multiple System HD 5980 by Koenigsberger, Gloria, Kurucz, Robert L, Georgiev, Leonid

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Hubble Space Telescope Observations of the Luminous Blue Variable/W-R Eclipsing Binary System HD 5980 by Koenigsberger, Gloria, Georgiev, Leonid, Barbá, Rodolfo, Tzvetanov, Zlatan, Walborn, Nolan R, Niemela, Virpi S, Morrell, Nidia, Schulte-Ladbeck, Regina

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Ultraviolet Observations of the Eruption in the Small Magellanic Cloud Wolf-Rayet System HD 5980 by Koenigsberger, Gloria, Guinan, Ed, Auer, Lawrence, Georgiev, Leonid

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The Discrepant Kinematics of ORLs and CELs in NGC 7009 as a Function of Ionization Structure by Richer, Michael G, Georgiev, Leonid, Arrieta, Anabel, Torres-Peimbert, Silvia

“…We present spatially- and velocity-resolved echelle spectroscopy for NGC 7009 obtained with the UVES spectrograph at the European Southern Observatory's Very…”
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ALMA and RATIR observations of GRB131030A by Huang, Kuiyun, Urata, Yuji, Takahashi, Satoko, Im, Myungshin, Yu, Po-Chieh, Choi, Changes, Butler, Nathaniel, Watson, Alan M, Kutyrev, Alexander, Lee, William H, Klein, Chris, Fox, Ori D, Littlejohns, Owen, Cucchiara, Nino, Troja, Eleonora, González, Jesús, Richer, Michael G, Román-Zúñiga, Carlos, Bloom, Josh, Prochaska, J. Xavier, Gehrels, Neil, Moseley, Harvey, Georgiev, Leonid, de Diego, José A, Ruiz, Enrico Ramirez

“…We report on the first open-use based Atacama Large Millimeter/submm Array (ALMA) 345-GHz observation for the late afterglow phase of GRB131030A. The ALMA…”
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A multi-wavelength view on the dusty Wolf-Rayet star WR 48a by Zhekov, Svetozar A, Tomov, Toma, Gawronski, Marcin P, Georgiev, Leonid N, Borissova, Jura, Kurtev, Radostin, Gagne, Marc, Hajduk, Marcin

“…We present results from the first attempts to derive various physical characteristics of the dusty Wolf-Rayet star WR 48a based on a multi-wavelength view of…”
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Wind structure and luminosity variations in the WR/LBV HD 5980 by Georgiev, Leonid N, Koenigsberger, Gloria, Hillier, D John, Morrell, Nidia, Barba, Rodolfo, Gamen, Roberto

“…Over the past 40 years, the massive LBV/WR system HD 5980 in the Small Magellanic Cloud has undergone a long-term S Doradus type variability cycle and two…”
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Strömgren and Hβ photometry of OB associations and open clusters – II. Tr 16 and Car OB2 by Kaltcheva, Nadia. T., Georgiev, Leonid. N.

“…Strömgren and Hβ photometry of 50 stars in the fields of Tr 16 and Car OB2 is presented. The colour excesses, the distances, the luminosities and the…”
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iPTF14yb: The First Discovery of a GRB Afterglow Independent of a High-Energy Trigger by Cenko, S. Bradley, Urban, Alex L, Perley, Daniel A, Horesh, Assaf, Corsi, Alessandra, Fox, Derek B, Cao, Yi, Kasliwal, Mansi M, Lien, Amy, Arcavi, Iair, Bloom, Joshua S, Butler, Nat R, Cucchiara, Antonino, de Diego, Jose A, Filippenko, Alexei V, Gal-Yam, Avishay, Gehrels, Neil, Georgiev, Leonid, Gonzalez, J. Jesus, Graham, John F, Greiner, Jochen, Kann, D. Alexander, Klein, Christopher R, Knust, Fabian, Kulkarni, S. R, Kutyrev, Alexander, Laher, Russ, Lee, William H, Nugent, Peter E, Prochaska, J. Xavier, Ramirez-Ruiz, Enrico, Richer, Michael G, Rubin, Adam, Urata, Yuji, Varela, Karla, Watson, Alan M, Wozniak, Przemek R

“…We report here the discovery by the Intermediate Palomar Transient Factory (iPTF) of iPTF14yb, a luminous ($M_{r}\approx-27.8$ mag), cosmological (redshift…”
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Strömgren and Hβ photometry of OB associations and open clusters – I. ARA OB1 by Kaltcheva, Nadia T., Georgiev, Leonid N.

“…Strömgren and Hβ photometry of 38 stars in the field of Ara OB1 is presented. The excesses, the absolute magnitudes and the temperatures of the stars have been…”
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Iron depletion in the hot bubbles in planetary nebulae by Georgiev, Leonid N, Richer, Michael G, Arrieta, Anabel, Zhekov, Svetozar A

“…Astrophys.J.639:185-193,2006 We have searched for the emission from \fex and \fexiv that is expected from the gas emitting in diffuse X-rays in \bd, NGC 6543,…”
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The Impact of the Astro2010 Recommendations on Variable Star Science by Walkowicz, Lucianne M, Becker, Andrew C, Anderson, Scott F, Bloom, Joshua S, Georgiev, Leonid, Grindlay, Josh, Long, Knox, Mukadam, Anjum, Prsa, Andrej, Pepper, Joshua, Rau, Arne, Sesar, Branimir, Silvestri, Nicole, Smith, Nathan, Stassun, Keivan, Szkody, Paula

“…The next decade of survey astronomy has the potential to transform our knowledge of variable stars. Stellar variability underpins our knowledge of the…”
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Optical Line profile variability of the B1+neutron star binary system LS I+65 010 = 2S 0114+650 by Koenigsberger, Gloria, Canalizo, Gabriela, Arrieta, Anabel, Richer, Michael G, Georgiev, Leonid

“…We present high resolution spectroscopic observations of the massive X-ray binary system LS I+65 010=2S 0114+650 in the optical wavelength region. A…”
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Unveiling the Kinematics and Dynamics of Ionized Gas in the Nearby Irregular Galaxy NGC 4449 by Valdez-Gutierrez, Margarita, Rosado, Margarita, Puerari, Ivanio, Georgiev, Leonid, Borissova, Jordanka, Ambrocio-Cruz, Patricia

“…A detailed kinematic analysis of ionized gas in the nearby irregular galaxy NGC 4449 is presented. Observations are conducted in the spectral lines of Halpha…”
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