TY  - BOOK
A1  - Janke, Thomas
A1  - Wuttke, Hans
A1  - Alpers, Karsten
A1  - Jahnke, Thomas
A1  - Janßen, Martin
A1  - Siekmann, Angelika
A1  - Simanowsky, Ursula
ED  - Janke, Thomas
ED  - Wuttke, Hans
T1  - Fokus Mathematik ; Analytische Geometrie Lineare Algebra ; Gymnasiale Oberstufe ; Baden-Württemberg
Y1  - 2005
SN  - 3-464-57340-0
PB  - Cornelsen
CY  - Berlin
ER  - 
TY  - BOOK
A1  - Alpers, Karsten
A1  - Dietzsch, Volker
A1  - Epp, Thomas
A1  - Jahnke, Thomas
A1  - Janßen, Martin
A1  - Siekmann, Angelika
A1  - Simanowsky, Ursula
A1  - Wuttke, Hans
T1  - Mathematik : Analytische Geometrie lineare Algebra ; Orientierungswissen Stochastik ; Handreichungen für den Unterricht ; Gymnasiale Oberstufe ; NRW
T3  - Orientierungswissen Stoachstik
Y1  - 2004
SN  - 3-464-57282-x
PB  - Cornelsen
CY  - Berlin
ER  - 
TY  - BOOK
A1  - Janke, Thomas
A1  - Wuttke, Hans
A1  - Bielig-Schulz, Gisela
A1  - Dietsch, Volker
A1  - Dreiseidler, Alexandra
A1  - Jahnke, Thomas
A1  - Lapport, Gabriele
A1  - Siekmann, Angelika
A1  - Simanowsky, Ursula
A1  - Wuttke, Ilse
ED  - Janke, Thomas
ED  - Wuttke, Hans
T1  - Mathematik : Analysis ; Gymnasiale Oberstufe, [Schülerbuch]
Y1  - 2002
SN  - 3-464-57216-1
PB  - Cornelsen
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Christensen, Lise Bech
A1  - Schulte-Ladbeck, R. E.
A1  - Sanchez, Sebastian F.
A1  - Becker, Thomas
A1  - Jahnke, Knud
A1  - Kelz, A.
A1  - Roth, Martin M.
A1  - Wisotzki, Lutz
T1  - Abundances and kinematics of a candidate sub-damped Lymana galaxy toward PHL 1226
N2  - The spectrum of the quasar PHL 1226 is known to have a strong Mg II and sub-damped Lymanalpha (sub-DLA) absorption line system with N(H I) = (5 +/- 2) x 10(19) cm(-2) at z = 0.1602. Using integral field spectra from the Potsdam Multi Aperture Spectrophotometer (PMAS) we investigate a galaxy at an impact parameter of 6".4 which is most probably responsible for the absorption lines. A fainter galaxy at a similar redshift and a slightly larger distance from the QSO is known to exist, but we assume that the absorption is caused by the more nearby galaxy. From optical Balmer lines we estimate an intrinsic reddening consistent with 0, and a moderate star formation rate of 0.5 M-circle dot yr(-1) is inferred from the Ha luminosity. Using nebular emission line ratios we find a solar oxygen abundance 12 + log (O/H) = 8.7 +/- 0.1 and a solar nitrogen to oxygen abundance ratio log (N/O) = -1.0 +/- 0.2. This abundance is larger than those of all known sub-DLA systems derived from analyses of metal absorption lines in quasar spectra. On the other hand, the properties are compatible with the most metal rich galaxies responsible for strong Mg II absorption systems. These two categories can be reconciled if we assume an abundance gradient similar to local galaxies. Under that assumption we predict abundances 12 + log (O/H) = 7.1 and log (N/O) = -1.9 for the sub-DLA cloud, which is similar to high redshift DLA and sub-DLA systems. We find evidence for a rotational velocity of similar to200 km s(-1) over a length of similar to7 kpc. From the geometry and kinematics of the galaxy we estimate that the absorbing cloud does not belong to a rotating disk, but could originate in a rotating halo
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Wisotzki, Lutz
A1  - Becker, Thomas
A1  - Christensen, Lise Bech
A1  - Helms, Andreas
A1  - Jahnke, Knud
A1  - Kelz, A.
A1  - Roth, Martin M.
A1  - Sanchez, Sebastian F.
T1  - Integral-field spectrophotometry of the quadruple QSO HE 0435-1223 : Evidence for microlensing
N2  - We present the first spatially resolved spectroscopic observations of the recently discovered quadruple QSO and gravitational lens HE 0435-1223. Using the Potsdam Multi-Aperture Spectrophotometer (PMAS), we show that all four QSO components have very similar but not identical spectra. In particular, the spectral slopes of components A, B, and D are indistinguishable, implying that extinction due to dust plays no major role in the lensing galaxy. While also the emission line profiles are identical within the error bars, as expected from lensing, the equivalent widths show significant differences between components. Most likely, microlensing is responsible for this phenomenon. This is also consistent with the fact that component D, which shows the highest relative continuum level, has brightened by 0.07 mag since Dec. 2001. We find that the emission line flux ratios between the components are in better agreement with simple lens models than broad band or continuum measurements, but that the discrepancies between model and data are still unacceptably large. Finally, we present a detection of the lensing galaxy, although this is close to the limits of the data. Comparing with a model galaxy spectrum, we obtain a redshift estimate of zlens=0.44+/- 0.02.
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Christensen, Lise Bech
A1  - Sanchez, Sebastian F.
A1  - Jahnke, Knud
A1  - Becker, Thomas
A1  - Wisotzki, Lutz
A1  - Kelz, A.
A1  - Popovic, L. C.
A1  - Roth, Martin M.
T1  - Integral field spectroscopy of extended Ly alpha emission from the DLA galaxy in Q2233+131
N2  - This paper presents observations of an extended Lyman-alpha emission nebula surrounding the galaxy responsible for the Damped Lyman-alpha Absorption (DLA) line in the spectrum of the quasar Q2233+131. With the Potsdam Multi Aperture Spectrophotometer (PMAS) we measure the properties of the extended Lyalpha emission in an area of 3" x 5" having a total line flux of (2.8 +/- 0.3) x 10(-16) erg cm(-2) s(-1), which at redshift z = 3.15 corresponds to a luminosity of (2.4(-0.2)(+0.3)) x 10(43) erg s(-1) and a size of 23 x 38 kpc. The location of the emission is spatially coincident with the previously detected DLA galaxy, but extends significantly beyond its limb. We argue that the Lya emission is likely to be caused by an outflow from the DLA galaxy, presumably powered by star formation. In the case of negligible dust extinction, the Lya luminosity indicates a star-formation rate of 19 +/- 10 M-. yr(-1) consistent with that derived from the UV continuum flux from the parent galaxy. The wind velocity indicated by the integral field spectra is of the order of several hundred km s(-1). We find no indication of emission originating in a rotating disk
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Wisotzki, Lutz
A1  - Becker, Thomas
A1  - Christensen, Lise Bech
A1  - Jahnke, Knud
A1  - Helms, Andreas
A1  - Kelz, A.
A1  - Roth, Martin M.
A1  - Sanchez, Sebastian F.
T1  - Integral field spectrophotometry of gravitationally lensed QSOs with PMAS
N2  - We present spatially resolved spectrophotometric observations of multiply imaged QSOs, using the Potsdam Multi- Aperture Spectrophotometer (PMAS), with the intention to search for spectral differences between components indicative of either microlensing or dust extinction. For the quadruple QSO HE 0435-1223 we find that the continuum shapes are indistinguishable, therefore differential extinction is negligible. The equivalent widths of the broad emission lines are however significantly different, and we argue that this is most likely due to microlensing. Contrariwise, the two components of the well-known object UM 673 have virtually identical emission line properties, but the continuum slopes differ significantly and indicate different dust extinction along both lines of sight
Y1  - 2004
SN  - 0004-6337
ER  - 
TY  - JOUR
A1  - Christensen, Lise Bech
A1  - Sanchez, Sebastian F.
A1  - Jahnke, Knud
A1  - Becker, Thomas
A1  - Kelz, A.
A1  - Wisotzki, Lutz
A1  - Roth, Martin M.
T1  - Integral field observations of damped Lyman-alpha galaxies
N2  - We report preliminary results from a targeted investigation on quasars containing damped Lyman-alpha absorption (DLA) lines as well strong metal absorption lines, carried out with the Potsdam Multi Aperture Spectrophotometer (PMAS). We search for line-emitting objects at the same redshift as the absorption lines and close to the line of sight of the QSOs. We have observed and detected the already confirmed absorbing galaxies in Q2233+131 (Z(abs) = 3.15) and Q0151+045 (Z(abs),= 0.168), while failing to find spectral signatures for the z = 0.091 absorber in Q0738+313. From the Q2233+131 DLA galaxy, we have detected extended Lyalpha emission from an area of 3" x 5"
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Jahnke, Knud
A1  - Wisotzki, Lutz
A1  - Sanchez, Sebastian F.
A1  - Christensen, Lise Bech
A1  - Becker, Thomas
A1  - Kelz, A.
A1  - Roth, Martin M.
T1  - Integral field spectroscopy of QSO host galaxies
N2  - We describe a project to study the state of the ISM in similar to20 low redshift (z < 0.3) QSO host galaxies observed with the PMAS integral field spectrograph. We describe the development of the method to access the stellar and gas components of the spectrum without the strong nuclear emission, in order to access the host galaxy properties in the central region. It shows that integral field spectroscopy promises to be very efficient in studying the gas distribution and its velocity field, and also the spatially resolved stellar population in the host galaxies of luminous AGN
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Christensen, Lise Bech
A1  - Becker, Thomas
A1  - Jahnke, Knud
A1  - Kelz, A.
A1  - Roth, Martin M.
A1  - Sanchez, S. S.
A1  - Wisotzki, Lutz
T1  - Integral field spectroscopy of SN 2002er with PMAS
N2  - sent observations of the Type Ia supernova SN 2002er during the brightening phase. The observations were performed with the Potsdam Multi Aperture Spectrophotometer (PMAS) integral field instrument. Due to the 8arcsecx8 arcsec field of view of the spectrograph an accurate background subtraction was possible. Results from analyses of the evolution of absorption features in comparisons with other SNe show that SN 2002er is a fairly bright Type Ia supernova with a peak brightness of MB=-19.6+/-0.1.
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Zur Ideologie von PISA und Co
Y1  - 2006
SN  - 978-388120-428-6
ER  - 
TY  - BOOK
A1  - Jahnke, Thomas
A1  - Bielig-Schulz, Gisela
A1  - Janßen, Martin
A1  - Siekmann, Angelika
A1  - Simanowsky, Ursula
A1  - Wuttke, Hans
ED  - Jahnke, Thomas
ED  - Bielig-Schulz, Gisela
T1  - Mathematik : Analytische Geometrie lineare Algebra ; Orientierungswissen Stochastik ; Gymnasiale Oberstufe ; NRW
Y1  - 2003
SN  - 3-464-57217-x
PB  - Cornelsen
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Optimal (und) begründet
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Wo bleibt das Subversive?
BT  - Ist die Fachdidaktik ein harmloses Metier?
JF  - LLF-Berichte / Universität Potsdam, Zentrum für Lehrerbildung
Y1  - 1996
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-4884
SN  - 0945-294X
VL  - 15
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Drei Türen, zwei Ziegen und eine Frau
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Wo bleibt das Subversive? : ist die Fachdidaktik ein harmloses Metier?
Y1  - 1996
ER  - 
TY  - BOOK
A1  - Bielig-Schulz, Gisela
A1  - Diepgen, R.
A1  - Jahnke, Thomas
ED  - Kuypers, Wilhelm
ED  - Lauter, Josef
ED  - Wuttke, Hans
T1  - Mathematik : 10. Schuljahr
Y1  - 1995
PB  - Cornelsen
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Lauter, Josef
A1  - Bölts, Gabriele
A1  - Jahnke, Thomas
A1  - Kuypers, Wilhelm
A1  - Rüdiger, Karlheinz
A1  - Wippermann, Christina
A1  - Wippermann, Heinrich
A1  - Wuttke, Hans
T1  - Mathematik Analysis : Gesamtband
Y1  - 1995
PB  - Cornelsen
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Das Thema Wahlen im Mathematik- oder Projektunterricht
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Was man zum Thema Wahlen wissen sollte
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Bundestagswahlen : von der Wahl zur Sitzverteilung
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Zur Kritik und Bedeutung der Stoffdidaktik
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Führer, L., Pädagogik des Mathematikunterrichts, eine Einführung in die Fachdidaktik; Braunschweig, Vieweg, 1997
BT  - Pädagogik des Mathematikunterrichts : eine Einführung in die Fachdidaktik
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Forschen und Lehren : nach guter Lehre forschen ; das Potsdamer Modell der Lehrerbildung ; Bilder und Gedanken aus dem westlichen Osten
Y1  - 1996
ER  - 
TY  - BOOK
A1  - Bielig-Schulz, Gisela
A1  - Jahnke, Thomas
ED  - Kuypers, Wilhelm
ED  - Lauter, Josef
ED  - Wuttke, Hans
T1  - Mathematik : 9. Schuljahr
Y1  - 1995
PB  - Cornelsen
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Beispiele für Themen in einem allgemeinbildenden Mathematikunterricht an Schule und Hochschule
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Warum sollen Schüler (nicht) Mathematik lernen
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Zur Bedeutung "des Computers" für den Mathematikunterricht
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Zur Erinnerung an Mathematikerinnen und Mathematiker, die im Nationalsozialismus verfolgt wurden
Y1  - 1995
SN  - 3-88120-264-1
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Wahlen
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
A1  - Brückner, Axel
A1  - Reibis, Eugen
A1  - Schulz, Rosemarie
T1  - Prozente
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Bruchrechnung - ein Dauerthema?
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
A1  - Wippermann, Christina
T1  - Vernünftig bremsen und rechnen! : zehn Aufgaben für Bahn-, Auto- und Radfahrer
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
A1  - Wippermann, Christina
T1  - Weg, Geschwindigkeit und Beschleunigung im Mathematikunterricht
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Bielig-Schulz, Gisela
A1  - Kuypers, Wilhelm
A1  - Dormanns, Klaus
A1  - Jahnke, Thomas
A1  - Lauter, Josef
A1  - Wuttke, Hans
T1  - Mathematik : 8. Schuljahr
Y1  - 1994
PB  - Cornelsen
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Wo bleibt das Subversive?
Y1  - 1997
SN  - 3-88120-284-6
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Stunden im Stau : eine Modellrechnung
Y1  - 1997
ER  - 
TY  - BOOK
A1  - Jahnke, Thomas
A1  - Herget, Wilfried
A1  - Kroll, Wolfgang
T1  - Produktive Aufgaben für den Mathematikunterricht Sekundarstufe 1 : Mathematik für die Unterrichtsvorbereitung ; Kopiervorlagen, Lösungshinweise, Word- und PDF-Dateien ; Lehrersoftware
Y1  - 2001
PB  - Cornelsen
CY  - Berlin
ER  - 
TY  - BOOK
A1  - Jahnke, Thomas
A1  - Herget, Wilfried
A1  - Kroll, Wolfgang
T1  - Produktive Aufgaben für den Mathematikunterricht in der Sekundarstufe I
Y1  - 2001
SN  - 3-464-54360-9
PB  - Cornelsen
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Arbeitsaufträge - nicht nur - zum Einstieg
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Unendlich : oder darf es etwas mehr sein?
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Kleines Aufgabenbrevier : zur Klassifizierung von Aufgaben im Mathematikunterricht
JF  - Sinus-Materialien
Y1  - 2001
UR  - http://www.plib.brandenburg.de/sinus/index.htm
VL  - 109
PB  - Pädagogisches Landesinstitut Brandenburg
CY  - Potsdam
ER  - 
TY  - BOOK
A1  - Jahnke, Thomas
A1  - Wuttke, Hans
A1  - Bielig-Schulz, Gisela
A1  - Dietzsch, Volker
A1  - Wuttke, Ilse
A1  - Lapport, Gabriele
T1  - Mathematik : Kl. 11, Gymnasiale Oberstufe, [Schülerbd.]
Y1  - 2001
SN  - 3-464-57210-2
PB  - Cornelsen
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Die vierte Dimension
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
T1  - Normaler, produktiver Mathematikunterricht
Y1  - 2000
ER  - 
TY  - BOOK
A1  - Jahnke, Thomas
T1  - Wo bleibt das Subversive?
Y1  - 1999
UR  - http://www.ex.ac.uk/~PErnst/pome11/art12.htm
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
A1  - Hamson, Mike
T1  - Measuring cycling effort
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Jahnke, Thomas
A1  - Hamson, Mike
T1  - Gearing up for mountain biking
Y1  - 1999
ER  -