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Zickgraf, Franz-Josef [Author]; Krautter, Joachim [Author]; Reffert, Sabine [Author]

Identification of a complete sample of northern ROSAT All-Sky Survey X-ray sources : VIII. The late-type stellar component

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2005

Published in: Astronomy and astrophysics ; 433(2005), 1, Seite 151-171
Zickgraf, Franz-Josef [Author]; Krautter, Joachim [Author]; Reffert, Sabine [Author]

Late-type field stars in the RASS at high galactic latitude

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https://arxiv.org/abs/astro-ph/0408232

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12 Aug 2004

Published in: De.arxiv.org ; (2004), Seite ?
Zickgraf, Franz-Josef [Author]; Wolf, Bernhard [Author]; Stahl, Otmar [Author]

Spectroscopic study of the outflowing disk winds of B[e] supergiants in the magellanic clouds*

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http://articles.adsabs.harvard.edu/full/1996A%26A...315..510Z

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1997

Published in: Astronomy and astrophysics ; 315(1997), Seite 510-520
Zickgraf, Franz-Josef [Author]; Krautter, Joachim [Author]; Appenzeller, Immo [Author]; Pakull, Manfred W. [Author]

Identification of a complete sample of northern ROSAT all-sky survey X-ray sources : VI. K to M-type stars south of Taurus-Auriga

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http://adsabs.harvard.edu/full/1998A%26A...339..457Z

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1998

Published in: Astronomy and astrophysics ; 339(1998), Seite 457-466
Zickgraf, Franz-Josef [Author]; Krautter, Joachim [Author]; Thiering, Ingeborg [Author]; Appenzeller, Immo [Author]

Identification of a complete sample of northern ROSAT All-Sky Survey X-ray sources : V. Discovery of a z=4.28 QSO near the RASS source RX J1028.6-0844

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http://adsabs.harvard.edu/full/1997A%26A...323L..21Z

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1997

Published in: Astronomy and astrophysics ; 323(1997), Seite L21-L24
Szeifert, Thomas [Author]; Stahl, Otmar [Author]; Wolf, Bernhard [Author]; Zickgraf, Franz-Josef [Author]

HST and groundbased observations of the "Hubble-Sandage" variables in M 31 and M 33

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http://articles.adsabs.harvard.edu/full/1996A%26A...314..131S

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1996

Published in: Astronomy and astrophysics ; 314(1996), Seite 131-145
Zickgraf, Franz-Josef [Author]; Wolf, Bernhard [Author]; Stahl, Otmar [Author]; Kaufer, Andreas [Author]; Appenzeller, Immo [Author]

R4 in the small magellanic cloud : a spectroscopic binary with a B[e]/LBV-type component

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http://adsabs.harvard.edu/full/1996A%26A...309..505Z

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1996

Published in: Astronomy and astrophysics ; 309(1996), Seite 505-514
Zickgraf, Franz-Josef [Author]; Wolf, Bernhard [Author]; Stahl, Otmar [Author]; Leitherer, Claus [Author]; Appenzeller, Immo [Author]

B[e] supergiants of the magellanic clouds

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http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1986A%26A...163..119Z&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf

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1986

Published in: Astronomy and astrophysics ; 163(1986), Seite 119-134
Zickgraf, Franz-Josef

The Connection with B[e] stars

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Cambridge University Press (CUP), 2000

Published in: International Astronomical Union Colloquium
Zickgraf, Franz-Josef

Disk Winds of B[e] Supergiants

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Cambridge University Press (CUP), 1999

Published in: International Astronomical Union Colloquium
Leitherer, Claus; Zickgraf, Franz-Josef

The detection of a circumstellar shell around P Cygni by direct CCD imaging

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Cambridge University Press (CUP), 1987

Published in: Symposium - International Astronomical Union
Zickgraf, Franz-Josef; Humphreys, Roberta M.

A stellar content survey of NGC 2403 and M81

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American Astronomical Society, 1991

Published in: The Astronomical Journal
Mújica, Raúl; Zickgraf, Franz-Josef; Chavushyan, V.; Juárez, Y.; Serrano, A.; Appenzeller, I.; Krautter, J.

Optical Identification of X-ray Sources in a High X-ray Flux Sensitivity Area from the RASS

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Cambridge University Press (CUP), 2002

Published in: International Astronomical Union Colloquium
Zickgraf, Franz-Josef; Humphreys, Roberta M.; Graham, John A.; Phillips, Andrew

CCD photometric UBVR sequences for M 83 and NGC 5128

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IOP Publishing, 1990

Published in: Publications of the Astronomical Society of the Pacific
Zickgraf, Franz-Josef; Humphreys, Roberta M.; Sitko, Michael L.; Manley, Thomas

CCD photometric UBVR sequences for NGC 2403 and M 81

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IOP Publishing, 1990

Published in: Publications of the Astronomical Society of the Pacific
Cohen, Judith G.; McWilliam, Andrew; Shectman, Stephen; Thompson, Ian; Christlieb, Norbert; Melendez, Jorge; Ramirez, Solange; Swensson, Amber; Zickgraf, Franz-Josef

Carbon Stars in the Hamburg/ESO Survey: Abundances

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American Astronomical Society, 2006

Published in: The Astronomical Journal
Cohen, Judith G.; Shectman, Stephen; Thompson, Ian; McWilliam, Andrew; Christlieb, Norbert; Melendez, Jorge; Zickgraf, Franz-Josef; Ramírez, Solange; Swenson, Amber

The Frequency of Carbon Rich Stars Among Extremely Metal Poor Stars

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Cambridge University Press (CUP), 2005

Published in: Proceedings of the International Astronomical Union
Cohen, Judith G.; Shectman, Stephen; Thompson, Ian; McWilliam, Andrew; Christlieb, Norbert; Melendez, Jorge; Zickgraf, Franz-Josef; Ramírez, Solange; Swenson, Amber

The Frequency of Carbon Stars among Extremely Metal-poor Stars

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American Astronomical Society, 2005

Published in: The Astrophysical Journal
Jones, Terry Jay; Humphreys, Roberta M.; Gehrz, Robert D.; Lawrence, Geoffrey F.; Zickgraf, Franz-Josef; Moseley, Harvey; Casey, Sean; Glaccum, William J.; Koch, Carol J.; Pina, Robert; Jones, Barbara; Venn, Kim; Stahl, Otmar; Starrfield, Sumner G.

IRC +10420 - A cool hypergiant near the top of the H-R diagram

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American Astronomical Society, 1993

Published in: The Astrophysical Journal
Beers, Timothy C.; Flynn, Chris; Rossi, Silvia; Sommer‐Larsen, Jesper; Wilhelm, Ronald; Marsteller, Brian; Lee, Young Sun; De Lee, Nathan; Krugler, Julie; Deliyannis, Constantine P.; Simmons, Andrew T.; Mills, Elisabeth; Zickgraf, Franz‐Josef; Holmberg, Johan; Onehag, Anna; Eriksson, Anders; Terndrup, Donald M.; Salim, Samir; Andersen, Johannes; Nordstrom, Birgitta; Christlieb, Norbert; Frebel, Anna; Rhee, Jaehyon

Broadband UBVR C I C Photometry of Horizontal‐Branch and Metal‐poor Candidates from the HK and Hamburg/ESO Surveys. I

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American Astronomical Society, 2007

Published in: The Astrophysical Journal Supplement Series

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