D. Engels

Cassiopeia A, Cygnus A, Taurus A, and Virgo A at ultra-low radio frequencies

#1

F. de Gasperin
(
- Hamburg Observ.
)
,
J. Vink
,
J.P. McKean
(
- Kapteyn Astron. Inst., Groningen and
- ASTRON, Dwingeloo
)
,
A. Asgekar
(
- ASTRON, Dwingeloo
)
,
M.J. Bentum
(
- ASTRON, Dwingeloo
)

et al.

(Feb 24, 2020)

Published in:
- Astron.Astrophys. 635 (2020) A150
•
e-Print:
- 2002.10431 [astro-ph.HE]

pdfDOI

reference search12 citations

Investigating the unification of LOFAR-detected powerful AGN in the Boötes field

#2

Leah K. Morabito
(
- Leiden Observ. and
- U. Oxford, Astrophys. Dept.
)
,
W.L. Williams
(
- Hertfordshire U.
)
,
Kenneth J. Duncan
(
- Leiden Observ.
)
,
H.J.A. Röttgering
(
- Leiden Observ.
)
,
George Miley
(
- Leiden Observ.
)

et al.

(Apr 20, 2017)

Published in:
- Mon.Not.Roy.Astron.Soc. 469 (2017) 2, 1883-1896
•
e-Print:
- 1704.06267 [astro-ph.GA]

pdfDOI

reference search3 citations

The LOFAR Two-metre Sky Survey: I. Survey Description and Preliminary Data Release

#3

T.W. Shimwell
(
- Leiden Observ.
)
,
H.J.A. Röttgering
(
- Leiden Observ.
)
,
P.N. Best
(
- Royal Observ., Edinburgh
)
,
W.L. Williams
(
- Hertfordshire U.
)
,
T.J. Dijkema
(
- ASTRON, Dwingeloo
)

et al.

(Nov 8, 2016)

Published in:
- Astron.Astrophys. 598 (2017) A104
•
e-Print:
- 1611.02700 [astro-ph.IM]

pdfDOI

reference search262 citations

LOFAR 150-MHz observations of the Boötes field: catalogue and source counts

#4

et al.

(May 5, 2016)

Published in:
- Mon.Not.Roy.Astron.Soc. 460 (2016) 3, 2385-2412
•
e-Print:
- 1605.01531 [astro-ph.CO]

pdfDOI

reference search118 citations

A large light-mass component of cosmic rays at 10^{17} - 10^{17.5} eV from radio observations

#5

S. Buitink
(
- LBL, Berkeley
)
,
A. Corstanje
(
- Nijmegen U., IMAPP
)
,
H. Falcke
(
- ASTRON, Dwingeloo and
- Nijmegen U., IMAPP and
- Nikhef, Amsterdam
)
,
J.R. Hörandel
(
- Karlsruhe U.
)
,
T. Huege
(
- KIT, Karlsruhe, IKP
)

et al.

(Mar 4, 2016)

Published in:
- Nature 531 (2016) 70
•
e-Print:
- 1603.01594 [astro-ph.HE]

pdfDOI

reference search151 citations

Wide-field LOFAR imaging of the field around the double-double radio galaxy B1834+620: A fresh view on a restarted AGN and doubeltjes

#6

et al.

(Oct 2, 2015)

Published in:
- Astron.Astrophys. 584 (2015) A112
•
e-Print:
- 1510.00577 [astro-ph.GA]

pdfDOI

reference search13 citations

The peculiar radio galaxy 4C 35.06: a case for recurrent AGN activity?

#7

et al.

(Apr 24, 2015)

Published in:
- Astron.Astrophys. 579 (2015) A27
•
e-Print:
- 1504.06642 [astro-ph.GA]

pdfDOI

reference search11 citations

LOFAR low-band antenna observations of the 3C295 and Bootes fields: source counts and ultra-steep spectrum sources

#8

et al.

(Sep 18, 2014)

Published in:
- Astrophys.J. 793 (2014) 82
•
e-Print:
- 1409.5437 [astro-ph.GA]

pdfDOI

reference search9 citations

Lunar occultation of the diffuse radio sky: LOFAR measurements between 35 and 80 MHz

#9

et al.

(Jul 16, 2014)

Published in:
- Mon.Not.Roy.Astron.Soc. 450 (2015) 3, 2291-2305
•
e-Print:
- 1407.4244 [astro-ph.IM]

pdfDOI

reference search18 citations

The shape of the radio wavefront of extensive air showers as measured with LOFAR

#10

A. Corstanje
(
- Nijmegen U., IMAPP
)
,
P. Schellart
(
- Nijmegen U., IMAPP
)
,
A. Nelles
(
- Nijmegen U., IMAPP and
- NIKHEF, Amsterdam
)
,
S. Buitink
(
- Nijmegen U., IMAPP
)
,
J.E. Enriquez
(
- Nijmegen U., IMAPP
)

et al.

(Apr 15, 2014)

Published in:
- Astropart.Phys. 61 (2015) 22-31
•
e-Print:
- 1404.3907 [astro-ph.HE]

pdfDOI

reference search91 citations

A multi-wavelength view of AB Dor's outer atmosphere - Simultaneous X-ray and optical spectroscopy at high cadence

#11

et al.

(Sep 19, 2013)

Published in:
- Astron.Astrophys. 560 (2013) A69
•
e-Print:
- 1309.4933 [astro-ph.SR]

pdfDOI

reference search3 citations

Studying Galactic interstellar turbulence through fluctuations in synchrotron emission: First LOFAR Galactic foreground detection

#12

et al.

(Aug 13, 2013)

Published in:
- Astron.Astrophys. 558 (2013) A72
•
e-Print:
- 1308.2804 [astro-ph.GA]

pdfDOI

reference search66 citations

Pathway to the Square Kilometre Array - The German White Paper -

#13

et al.

(Jan, 2013)

e-Print:
- 1301.4124 [astro-ph.IM]

pdf

reference search22 citations

[CII] 158 micron Luminosities and Star Formation Rate in Dusty Starbursts and AGN

#14

et al.

(Jun, 2012)

Published in:
- Astrophys.J. 755 (2012) 171
•
e-Print:
- 1206.5435 [astro-ph.CO]

pdfDOI

reference search37 citations

The transition from AGB to post-AGB evolution as observed by AKARI and Spitzer

#15

(Apr, 2009)

Published in:
- ASP Conf.Ser. 418 (2009) 159
•
e-Print:
- 0904.3958 [astro-ph.SR]

pdf

reference search0 citations

AKARI/IRC observations of heavily obscured oxygen-rich AGB and post-AGB stars

#16

(Apr, 2009)

Published in:
- ASP Conf.Ser. 418 (2009) 431
•
e-Print:
- 0904.4134 [astro-ph.SR]

pdf

reference search1 citation

AKARI and Spitzer observations of heavily obscured C-rich AGB/post-AGB stars

#17

(Apr, 2009)

Published in:
- ASP Conf.Ser. 418 (2009) 435
•
e-Print:
- 0904.4158 [astro-ph.SR]

pdf

reference search1 citation

Water vapour masers in long-period variable stars. I. RX Boo and SV Peg

#18

(Feb, 2008)

Published in:
- Astron.Astrophys. 482 (2008) 831
•
e-Print:
- 0802.4422 [astro-ph]

pdfDOI

reference search1 citation

Lifetime of OH masers at the tip of the asymptotic giant branch

#19

(Oct, 2007)

Published in:
- Astron.Astrophys. 475 (2007) 941
•
e-Print:
- 0710.1697 [astro-ph]

pdfDOI

reference search1 citation

SW Sextantis stars: the dominant population of CVs with orbital periods between 3-4 hours

#20

et al.

(Apr, 2007)

Published in:
- Mon.Not.Roy.Astron.Soc. 377 (2007) 1747-1762
•
e-Print:
- 0704.1129 [astro-ph]

pdfDOI

reference search44 citations

HS1857+5144: A hot and young pre-cataclysmic variable

#21

et al.

(Apr, 2007)

Published in:
- Astron.Astrophys. 469 (2007) 297
•
e-Print:
- 0704.1780 [astro-ph]

pdfDOI

reference search10 citations

Near-IR variability properties of a selected sample of AGB stars

#22

Francisco M. Jimenez-Esteban
(
- OAN, Alcala de Henares
)
,
P. Garcia-Lario
(
- ESA, Madrid
)
,
D. Engels
(
- Hamburg Observ.
)
,
A. Manchado
(
- IAC, La Laguna and
- CSIC, Catalunya
)

(Jun, 2006)

Published in:
- Astron.Astrophys. 458 (2006) 533
•
e-Print:
- astro-ph/0606380 [astro-ph]

pdfDOI

reference search5 citations

Dwarf novae in the Hamburg Quasar Survey: Rarer than expected

#23

et al.

(May, 2006)

Published in:
- Astron.Astrophys. 455 (2006) 659
•
e-Print:
- astro-ph/0605588 [astro-ph]

pdfDOI

reference search19 citations

On the evolutionary connection between agb stars and pne

#24

F.M. Jimenez-Esteban
(
- Hamburg Observ.
)
,
P. Garcia-Lario
(
- ESA, Madrid
)
,
D. Engels
(
- Hamburg Observ.
)

(Sep, 2005)

Published in:
- AIP Conf.Proc. 804 (2005) 1, 141-144
•
Contribution to:
- International Conference on Planetary Nebulae as Astronomical Tools, 141-144
•
e-Print:
- astro-ph/0509139 [astro-ph]

pdfDOI

reference search1 citation

An Infrared study of galactic OH/IR stars. 2. The `GLMP sample' of red oxygen-rich AGB stars

#25

F.M. Jimenez-Esteban
(
- ESA, Madrid and
- Hamburg Observ.
)
,
P. Garcia-Lario
(
- ESA, Madrid
)
,
D. Engels
(
- Hamburg Observ.
)
,
J.V. Perea Calderon
(
- ESA, Madrid
)

(Aug, 2005)

Published in:
- Astron.Astrophys. 446 (2006) 773
•
e-Print:
- astro-ph/0508113 [astro-ph]

pdfDOI

reference search9 citations

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