Publications (62)
A census of Coronal Mass Ejections on solar-like stars
M. Leitzinger, P. Odert, R. Greimel +8
Coronal Mass Ejections (CMEs) may have major importance for planetary and stellar evolution. Stellar CME parameters, such as mass and velocity, have yet not been determined statist…
A search for flares and mass ejections on young late-type stars in the open cluster Blanco-1
M. Leitzinger, P. Odert, R. Greimel +5
We present a search for stellar activity (flares and mass ejections) in a sample of 28 stars in the young open cluster Blanco-1. We use optical spectra obtained with ESO's VIMOS mu…
MICADO: first light imager for the E-ELT
R. Davies, J. Schubert, M. Hartl +80
MICADO will equip the E-ELT with a first light capability for diffraction limited imaging at near-infrared wavelengths. The instrument's observing modes focus on various flavours o…
T Tauri candidates and accretion rates using IPHAS: method and application to IC1396
Geert Barentsen, Jorick S. Vink, J. E. Drew +6
The INT Photometric H-Alpha Survey (IPHAS) is a 1800 deg^2 survey of the Northern Galactic Plane, reaching down to r'~21. We demonstrate how the survey can be used to (1) reliably…
Future mmVLBI Research with ALMA: A European vision
R. P. J. Tilanus, T. P. Krichbaum, J. A. Zensus +165
Very long baseline interferometry at millimetre/submillimetre wavelengths (mmVLBI) offers the highest achievable spatial resolution at any wavelength in astronomy. The anticipated…
The Local Group Census: searching for PNe in IC 1613, WLM and GR8
L. Magrini, R. L. M. Corradi, R. Greimel +8
In the framework of the Local Group Census (LGC), a survey of the Local Group (LG) galaxies above Dec=, which is aimed at surveying their populations with strong emissio…
The new carbon symbiotic star IPHAS J205836.43+503307.2
R. L. M. Corradi, L. Sabin, U. Munari +5
We are performing a search for symbiotic stars using IPHAS, the INT Halpha survey of the northern Galactic plane, and follow-up observations. Candidate symbiotic stars are selected…
Spectroscopy of flares on AU Mic
P. Odert, M. Leitzinger, P. Kabáth +6
Photometric space missions like Kepler and TESS have revealed unprecedented statistics of stellar flares, including the frequent detection of highly energetic superflares. Spectros…
IPHAS extinction distances to Planetary Nebulae
C. Giammanco, S. E. Sale, R. L. M. Corradi +13
The determination of reliable distances to Planetary Nebulae (PNe) is one of the major limitations in the study of this class of objects in the Galaxy. The availability of new phot…
A planetary nebula around nova V458 Vul undergoing flash ionization
R. Wesson, M. J. Barlow, R. L. M. Corradi +25
Nova V458 Vul erupted on 2007 August 8th and reached a visual magnitude of 8.1 a few days later. H images obtained six weeks before the outburst as part of the IPHAS galactic p…
New Young Planetary Nebulae in IPHAS
K. Viironen, A. Mampaso, R. L. M. Corradi +12
We search for very small-diameter galactic planetary nebulae (PNe) representing the earliest phases of PN evolution. A recently published IPHAS catalogue of Ha-emitting stars provi…
The enigma of the oldest `nova': the central star and nebula of CK Vul
M. Hajduk, Albert A. Zijlstra, P. A. M. van Hoof +9
CK Vul is classified as, amongst others, the slowest known nova, a hibernating nova, or a very late thermal pulse object. Following its eruption in AD 1670, the star remained visib…
First results of an H-alpha based search of classical Be stars in the Perseus Arm and beyond
R. Raddi, J. E. Drew, J. Fabregat +9
We investigate a region of the Galactic plane, between 120 <= l <= 140 and -1 <= b <= +4, and uncover a population of moderately reddened (E(B-V) \sim 1) classical Be stars within…
PLATOSpec: a precise spectrograph in support of space missions
P. Kabáth, M. Skarka, A. Hatzes +42
The upcoming space missions that will characterize exoplanets, such as PLATO and Ariel, will collect huge amounts of data that will need to be complemented with ground-based observ…
IPHAS and the symbiotic stars. I. Selection method and first discoveries
R. L. M. Corradi, E. R. RodrÃguez-Flores, A. Mampaso +7
The study of symbiotic stars is essential to understand important aspects of stellar evolution in interacting binaries. Their observed population in the Galaxy is however poorly kn…
IPHAS and the symbiotic stars. II. New discoveries and a sample of the most common mimics
R. L. M. Corradi, M. Valentini, U. Munari +19
In a previous paper [arXiv:0712.2391], we presented the selection criteria needed to search for symbiotic stars in IPHAS, the INT Halpha survey of the Northern Galactic plane. IPHA…
The Second Data Release of the INT Photometric H-Alpha Survey of the Northern Galactic Plane (IPHAS DR2)
Geert Barentsen, H. J. Farnhill, J. E. Drew +50
The INT/WFC Photometric H-Alpha Survey of the Northern Galactic Plane (IPHAS) is a 1800 square degrees imaging survey covering Galactic latitudes |b| < 5 deg and longitudes l = 30…
Initial Data Release from the INT Photometric H-alpha Survey of the Northern Galactic Plane (IPHAS)
E. A. Gonzalez-Solares, N. A. Walton, R. Greimel +47
The INT/WFC Photometric H-alpha Survey of the Northern Galactic Plane (IPHAS) is an imaging survey being carried out in H-alpha, r' and i' filters, with the Wide Field Camera (WFC)…
The VST Photometric Halpha Survey of the Southern Galactic Plane and Bulge (VPHAS+)
J. E. Drew, E. Gonzalez-Solares, R. Greimel +32
The VST Photometric Halpha Survey of the Southern Galactic Plane and Bulge (VPHAS+) is surveying the southern Milky Way in u, g, r, i and Halpha at 1 arcsec angular resolution. Its…
The Structure of the Outer Galactic Disc as revealed by IPHAS early A Stars
S. E. Sale, J. E. Drew, C. Knigge +10
This study is an investigation of the stellar density profile of the Galactic disc in the Anticentre direction. We select over 40,000 early A stars from IPHAS photometry in the Gal…
Highly extinguished supernovae in the nuclear regions of starburst galaxies
S. Mattila, W. P. S. Meikle, R. Greimel
A handful of nearby supernovae (SNe) with visual extinctions of a few magnitudes have recently been discovered. However, an undiscovered population of much more highly extinguished…
WEAVE imaging spectroscopy of NGC 6720: an iron bar in the Ring
R. Wesson, J. E. Drew, M. J. Barlow +23
We present spatially resolved spectroscopic observations of the planetary nebula NGC 6720, the Ring Nebula, taken during the science verification phase of WEAVE, a new instrument m…
The UV-Excess Survey of the Northern Galactic Plane (UVEX)
Paul J. Groot, K. Verbeek, R. Greimel +41
The UV-Excess Survey of the Northern Galactic Plane images a 10x185 degree wide band, centered on the Galactic Equator using the 2.5m Isaac Newton Telescope in four bands (U,g,r,He…
The Gaia-ESO Survey: Stellar content and elemental abundances in the massive cluster NGC 6705
T. Cantat-Gaudin, A. Vallenari, S. Zaggia +52
Chemically inhomogeneous populations are observed in most globular clusters, but not in open clusters. Cluster mass seems to play a key role in the existence of multiple population…
Newly Discovered Cataclysmic Variables from the INT/WFC Photometric H alpha Survey of the Northern Galactic Plane
A. R. Witham, C. Knigge, A. Aungwerojwit +7
We report the discovery of 11 new cataclysmic variable (CV) candidates by the Isaac Newton Telescope (INT) Photometric H alpha Survey of the northern Galactic plane (IPHAS). Three…
Investigating magnetic activity in very stable stellar magnetic fields: long-term photometric and spectroscopic study of the fully convective M4 dwarf V374 Peg
K. Vida, L. Kriskovics, K. Oláh +8
The ultrafast-rotating () fully convective single M4 dwarf V374 Peg is a well-known laboratory for studying intense stellar activity in a stable magnet…
Initial data release of the Kepler-INT Survey
S. Greiss, D. Steeghs, B. T. Gänsicke +19
This paper describes the first data release of the Kepler-INT Survey (KIS), that covers a 116 deg2 region of the Cygnus and Lyra constellations. The Kepler field is the target of t…
Spectroscopic observations of flares and superflares on AU Mic
P. Odert, M. Leitzinger, R. Greimel +13
The young active flare star AU~Mic is the planet host star with the highest flare rate from TESS data. Therefore, it represents an ideal target for dedicated ground-based monitorin…
Near-IR spectra of IPHAS extremely red Galactic AGB stars
N. J. Wright, M. J. Barlow, R. Greimel +4
We present a library of 139 near-IR spectra of cool asymptotic giant branch stars that will be useful for comparison with theoretical model atmosphere calculations and for modeling…
The Local Group Census: planetary nebulae in IC 10, Leo A and Sextans A
L. Magrini, R. L. M. Corradi, R. Greimel +8
In the framework of our narrow-band survey of the Local Group galaxies, we present the results of the search for planetary nebulae (PNe) in the dwarf irregular galaxies IC10, LeoA…
An IPHAS-based search for accreting very low-mass objects using VO tools
L. Valdivielso, E. L. Martin, H. Bouy +6
The main goal of this paper is to prove that accreting very low-mass stars and brown dwarfs can be identified in IPHAS, a Halpha emission survey of the northern Milky Way.Full expl…
The IPHAS-POSS-I proper motion survey of the Galactic Plane
N. R. Deacon, P. J. Groot, J. E. Drew +6
We present a proper motion survey of the Galactic plane, using IPHAS data and POSS-I Schmidt plate data as a first epoch, that probes down to proper motions below 50 milliarcsecond…
Spectroscopic investigation of the southern late-K/early-M dwarf binary CC Eri
M. Leitzinger, P. Odert, R. Greimel +6
In the recent past investigations of stellar Coronal Mass Ejections (CMEs) and flares/superflares gained special attention because of their relevance for planetary habitability and…
The Necklace: equatorial and polar outflows from the binary central star of the new planetary nebula IPHASXJ194359.5+170901
R. L. M. Corradi, L. Sabin, B. Miszalski +13
IPHASXJ194359.5+170901 is a new high-excitation planetary nebula with remarkable characteristics. It consists of a knotty ring expanding at a speed of 28 km/s, and a fast collimate…
The deep OB star population in Carina from the VST Photometric H Survey (VPHAS+)
M. Mohr-Smith, J. E. Drew, R. Napiwotzki +10
Massive OB stars are critical to the ecology of galaxies, and yet our knowledge of OB stars in the Milky Way, fainter than , remains patchy. Data from the VST Photometri…
Flares and superflares on the southern active binary CC Eri
M. Leitzinger, P. Odert, R. Greimel +15
Flares and CMEs are known to be the dominating high-energy phenomena on cool stars. Superflares were thoroughly investigated using broadband photometry predominantly from Kepler, K…
High resolution H-alpha imaging of the Northern Galactic Plane, and the IGAPS images database
R. Greimel, J. E. Drew, M. Monguió +19
The INT Galactic Plane Survey (IGAPS) is the merger of the optical photometric surveys, IPHAS and UVEX, based on data from the Isaac Newton Telescope (INT) obtained between 2003 an…
A new Planetary Nebula in the outer reaches of the Galaxy
K. Viironen, A. Mampaso, R. L. M. Corradi +11
A proper determination of the abundance gradient in the Milky Way requires the observation of objects at large galactiocentric distances. With this aim, we are exploring the planet…
The Local Group Census: planetary nebulae in Sextans B
L. Magrini, R. L. M. Corradi, N. A. Walton +6
Five planetary nebulae (PNe) have been discovered in the nearby dwarf irregular galaxy. Emission line images were obtained using the Wide Field Camera of the 2.5m Isaac Newton Tele…
LX Cygni: A carbon star is born
S. Uttenthaler, S. Meingast, T. Lebzelter +5
Context: The Mira variable LX Cyg showed a dramatic increase of its pulsation period in the recent decades and appears to undergo an important transition in its evolution. Aims: We…
Indications of stellar prominence oscillations on fast rotating stars: the cases of HK Aqr and PZ Tel
M. Leitzinger, P. Odert, T. V. Zaqarashvili +3
We present the analysis of six nights of spectroscopic monitoring of two young and fast rotating late-type stars, namely the dMe star HK Aqr and the dG/dK star PZ Tel. On both star…
The INT Photometric H-alpha Survey of the Northern Galactic Plane (IPHAS)
Janet E. Drew, R. Greimel, M. J. Irwin +1
The INT Photometric Halpha Survey of the Northern Galactic Plane (IPHAS) is a 1800 square degrees CCD survey of the northern Milky Way spanning the latitude range -5 < b < +5 (degr…
High Spatial Resolution Galactic 3D Extinction Mapping with IPHAS
S. E. Sale, J. E. Drew, Y. C. Unruh +12
We present an algorithm ({\scshape mead}, for `Mapping Extinction Against Distance') which will determine intrinsic () colour, extinction, and distance for early-A to K4 s…
Galactic AGB stars from the IPHAS survey
N. J. Wright, M. J. Barlow, R. Greimel +2
The INT Photometric H-Alpha Survey (IPHAS) is particular effective in tracing asymptotic giant branch (AGB) stars across the Galactic disk due to its use of broad-band r' and i' fi…
The IPHAS Catalogue of Halpha Emission Line Sources in the Northern Galactic Plane
A. R. Witham, C. Knigge, J. E. Drew +5
We present a catalogue of point-source Halpha emission line objects selected from the INT/WFC Photometric H Survey of the Northern Galactic Plane (IPHAS). The catalogue covers…
Early-A stars from IPHAS, and their distribution in and around the Cyg OB2 association
Janet E. Drew, R. Greimel, M. J. Irwin +1
Stellar photometry derived from the INT/WFC Photometric H Survey of the Northern Galactic Plane (IPHAS) can be used to identify large, reliable samples of A0-A5 dwarfs. For eve…
Observations and detectability of young Suns' flaring and CME activity in optical spectra
M. Leitzinger, P. Odert, R. Greimel
The Sun's history is still a subject of interest to modern astrophysics. Observationally constrained CME rates of young solar analogues are still lacking, as those require dedicate…
Spatial distributions of core-collapse supernovae in infrared-bright galaxies
Tuomas Kangas, Seppo Mattila, Erkki Kankare +4
We have measured the correlation between the locations of core-collapse supernovae (CCSNe) and host galaxy light in the Ha line, near ultraviolet (NUV), R-band and Ks-band to const…
Candidate planetary nebulae in the IPHAS photometric catalogue
K. Viironen, R. Greimel, R. L. M. Corradi +12
Context. We have carried out a semi-automated search for planetary nebulae (PNe) in the INT Photometric H-Alpha Survey (IPHAS) catalogue. We present the PN search and the list of s…
Second data release of the Kepler-INT Survey
S. Greiss, D. T. H. Steeghs, B. T. Gänsicke +8
This short document reports on the second data release of the Kepler-INT Survey (KIS, Greiss et al. 2012). The Kepler field, a 116 sq.deg region of the Cygnus and Lyra constellatio…
DE CVn: A bright, eclipsing red dwarf - white dwarf binary
E. J. M. van den Besselaar, R. Greimel, L. Morales-Rueda +10
Close white dwarf - red dwarf binaries must have gone through a common-envelope phase during their evolution. DE CVn is a detached white dwarf - red dwarf binary with a relatively…
IGAPS: the merged IPHAS and UVEX optical surveys of theNorthern Galactic Plane
M. Monguió, R. Greimel, J. E. Drew +47
The INT Galactic Plane Survey (IGAPS) is the merger of the optical photometric surveys, IPHAS and UVEX, based on data from the Isaac Newton Telescope (INT) obtained between 2003 an…
First release of the IPHAS Catalogue of New Extended Planetary Nebulae
L. Sabin, Q. A. Parker, R. L. M Corradi +21
We present the first results of our search for new, extended Planetary Nebulae (PNe) based on careful, systematic, visual scrutiny of the imaging data from the INT Photometric H-al…
The Properties of Cataclysmic Variables In Photometric Halpha Surveys
A. R. Witham, C. Knigge, B. T. Gaensicke +9
We report on the properties of 71 known cataclysmic variables (CVs) in photometric Halpha emission line surveys. Our study is motivated by the fact that the Isaac Newton Telescope…
Is the semi-regular variable RU Vulpeculae undergoing a helium-shell flash?
S. Uttenthaler, R. Greimel, M. Templeton
The semi-regular variable star RU Vulpeculae (RU Vul) is being observed visually since 1935. Its pulsation period and amplitude are declining since . A leading hypothesis…
Extremely red stellar objects revealed by IPHAS
N. J. Wright, R. Greimel, M. J. Barlow +13
We present photometric analysis and follow-up spectroscopy for a population of extremely red stellar objects extracted from the point-source catalogue of the INT Photometric H-Alph…
PNe in the dwarf galaxy NGC 6822: Detection of new candidates
P. Leisy, R. L. M. Corradi, L. Magrini +3
We have discovered 13 new candidate Planetary Nebulae (PNe) in the dwarf irregular galaxy NGC 6822, increasing its total number to 17 objects. Our sample of candidate PNe is comple…
A dust-enshrouded tidal disruption event with a resolved radio jet in a galaxy merger
S. Mattila, M. Pérez-Torres, A. Efstathiou +33
Tidal disruption events (TDEs) are transient flares produced when a star is ripped apart by the gravitational field of a supermassive black hole (SMBH). We have observed a transien…
280 one-opposition near-Earth asteroids recovered by the EURONEAR with the Isaac Newton Telescope
O. Vaduvescu, L. Hudin, T. Mocnik +80
One-opposition near-Earth asteroids (NEAs) are growing in number, and they must be recovered to prevent loss and mismatch risk, and to improve their orbits, as they are likely to b…
The shaping of planetary nebula Sh 2-188 through interaction with the interstellar medium
C. J. Wareing, T. J. O'Brien, Albert A. Zijlstra +5
Sh 2-188 is an example of strong interaction between a planetary nebula (PN) and the interstellar medium (ISM). Its structure is postulated to be the result of motion through the I…
The "Principes de Asturias" nebula: a new quadrupolar planetary nebula from the IPHAS survey
A. Mampaso, R. L. M. Corradi, K. Viironen +11
The Isaac Newton Telescope Photometric H-alpha Survey (IPHAS) is currently mapping the Northern Galactic plane reaching to r'=20 mag with typically 1" resolution. Hundreds of Plane…
Uniformly-calibrated VPHAS+ photometry in the third quadrant of the Galactic plane
J. E. Drew, R. Greimel, J. Eislöffel +2
The southern Galactic plane has been mapped at optical wavelengths and at under one-arcsecond angular resolution by the VST Photometric Ha Survey of the Galactic plane and bulge (V…