Start year
1986
End year
2018
Organizational Unit
Organizing institutions
General
Description
This project has three major objectives: 1) To determine the physico-chemical characteristics of bipolar planetary nebulae and symbiotic nebulae, to help understanding the origin of bipolarity and to test theoretical models, mainly models with binary central stars, aimed at explaining the observed morphology and kinematics. 2) To study the low-ionization microstructures in planetary nebulae, their origin (in the context of the main shell formation), their physico-chemical characteristics, and their interaction with the nebular gas. 3) To discover and study galactic and extragalactic planetary nebulae, analyzing their physico-chemical properties and the metallicity gradients along the galactic discs.
Members
Principal investigator
Antonio
Mampaso Recio
Project manager
ROMANO LUIGI MARIA CORRADI
Project staff
ROMANO LUIGI MARIA CORRADI
REBECA GALERA ROSILLO
David
Sánchez Aguado
Collaborators
J. Drew - University of Hertfordshire
R. Greimel - University of Graz- Institute of Physics
M. Santander García - Observatorio Astronomico Nacional Madrid
D.R. Gonçalves - Observatorio do Valongo
U. Munari - Istituto Nazionale di Astrofisica
L. Sabin - Universidad Nacional Autónoma de México
T. Liimets - Tartu Observatoorium
B. Balick - University of Washington
L. Magrini - Università di Firenze
R. Wesson - European Southern Observatory
Henri Boffin - European Southern Observatory
T. Hillwig - Valparaiso University
B. Miszalski - Southern African Large Telescope
Results
Miszalski, B and collaborators (2016, MNRAS, 456, 633) re-discovered a dwarf nova system, an eruption of which was first observed by ancient Chinese astronomers in the year 483 CE. Hillwig, T and collaborators (2016, ApJ, 832, 125) demonstrated that the symmetry axes of planetary nebulae with binary central stars always lie perpendicular to the orbital plane of the central binaries. The probability of encountering such a tight correlation by chance is less than a million to one.
Scientific activity
Related publications
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Spatially resolved physical and chemical properties of the planetary nebula NGC 3242Aims: Optical integral-field spectroscopy was used to investigate the planetary nebula NGC 3242. We analysed the main morphological components of this source, including its knots, but not the halo. In addition to revealing the properties of the physical and chemical nature of this nebula, we also provide reliable spatially resolved constraints thatCorradi, R. L. M. et al.
Advertised on:
122013 -
Discovery of a planetary nebula surrounding the symbiotic star DT SerpentisWe report the discovery of a planetary nebula centered on the poorly studied symbiotic binary star DT Ser. In a few other symbiotic stars spatially resolved nebulae have been discovered as well, but only one of them probably is a genuine planetary nebula, while the others are likely to originate in complex mass-ejection episodes from theMunari, U. et al.
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102013 -
Metal-rich Planetary Nebulae in the Outer Reaches of M31Spectroscopic data of two relatively [O III]-luminous planetary nebulae (PNe) have been obtained with the 10.4 m Gran Telescopio Canarias. M174 and M2496 are each ~1° from the center of M31 along opposite sides of its minor axis. The ensemble of these 2 distant PNe plus 16 similarly luminous outer-disk PNe published previously by Kwitter et alBalick, B. et al.
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92013 -
Outflows from Evolved Stars: The Rapidly Changing Fingers of CRL 618Our ultimate goal is to probe the nature of the collimator of the outflows in the pre-planetary nebula CRL 618. CRL 618 is uniquely suited for this purpose owing to its multiple, bright, and carefully studied finger-shaped outflows east and west of its nucleus. We compare new Hubble Space Telescope images to images in the same filters observed asBalick, Bruce et al.
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72013 -
New Galactic supernova remnants discovered with IPHASAs part of a systematic search programme of a 10° wide strip of the northern Galactic plane, we present preliminary evidence for the discovery of four (and possibly five) new supernova remnants (SNRs). The pilot search area covered the 19-20 h right ascension zone sampling from +20° to +55° in declination using binned mosaic images from the IsaacMorris, R. A. H. et al.
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52013 -
First results of an Hα based search of classical Be stars in the Perseus Arm and beyondWe 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) ˜ 1) classical Be stars within and beyond the Perseus and Outer Arms. 370 candidate emission-line stars (13 ≲ r ≲ 16) selected from the Isaac Newton Telescope Photometric Hα Survey of the NorthernDrake, J. J. et al.
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42013 -
A carbon dwarf wearing a Necklace: first proof of accretion in a post-common-envelope binary central star of a planetary nebula with jetsThe formation of collimated outflows or jets in planetary nebulae (PNe) is not well understood. There is no evidence for active accretion discs in PNe, making it difficult to decide which of the several proposed jet formation scenarios may be correct. A handful of wide binary central stars of PNe are known to have accreted carbon and slow neutronMiszalski, Brent et al.
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12013 -
An Interacting Binary System Powers Precessing Outflows of an Evolved StarStars are generally spherical, yet their gaseous envelopes often appear nonspherical when ejected near the end of their lives. This quirk is most notable during the planetary nebula phase, when these envelopes become ionized. Interactions among stars in a binary system are suspected to cause the asymmetry. In particular, a precessing accretion diskKöppen, Joachim et al.
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112012 -
A Three-dimensional View of the Remnant of Nova Persei 1901 (GK Per)We present a kinematical study of the optical ejecta of GK Per. It is based on proper-motion measurements of 282 knots from ~20 images spanning 25 years. Doppler shifts are also computed for 217 knots. The combination of proper motions and radial velocities allows a unique three-dimensional view of the ejecta to be obtained. The main results are asLiimets, T. et al.
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122012 -
The Chandra X-Ray Survey of Planetary Nebulae (CHANPLANS): Probing Binarity, Magnetic Fields, and Wind CollisionsWe present an overview of the initial results from the Chandra Planetary Nebula Survey (CHANPLANS), the first systematic (volume-limited) Chandra X-Ray Observatory survey of planetary nebulae (PNe) in the solar neighborhood. The first phase of CHANPLANS targeted 21 mostly high-excitation PNe within ~1.5 kpc of Earth, yielding four detections ofDe Marco, O. et al.
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82012 -
Spectroscopic follow-up of ultraviolet-excess objects selected from the UVEX surveyWe present the results of the first spectroscopic follow-up of 132 optically blue ultraviolet (UV)-excess sources selected from the UV-Excess Survey of the Northern Galactic Plane (UVEX). The UV-excess spectra are classified into different populations and grids of model spectra are fitted to determine spectral types, temperatures, surface gravitiesVerbeek, Kars et al.
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102012 -
XMMU J134736.6+173403: an eclipsing LMXB in quiescence or a peculiar AGN?Aims:We report the discovery of a peculiar object observed serendipitously with XMM-Newton. We present its timing and spectral properties and investigate its optical counterpart. Methods: The light curve of the X-ray source, its spectrum, and the spectrum of the best optical counterpart are presented and analyzed. Results: The X-ray flux decreasesCarpano, S. et al.
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32008 -
Discovery in IC10 of the farthest known symbiotic starWe report the discovery of the first known symbiotic star in IC10, a starburst galaxy belonging to the Local Group, at a distance of ~750 kpc. The symbiotic star was identified during a survey of emission-line objects. It shines at V = 24.62 +/- 0.04,V - RC = 2.77 +/- 0.05 and RC - IC = 2.39 +/- 0.02, and suffers from EB- V = 0.85 +/- 0.05Gonçalves, Denise R. et al.
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112008 -
K 3-22: a D-type symbiotic starA goal of the IPHAS survey is to determine the frequency and nature of emission-line sources in the Galactic plane. According to our selection criteria, K 3-22 is a candidate symbiotic star, but it was previously classified as a planetary nebula. To determine its nature, we acquired a low-resolution optical spectrum of K 3-22. Our analysis of ourCorradi, R. L. M. et al.
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92010 -
The evolution of M 2-9 from 2000 to 2010Context. Understanding the formation of collimated outflows is one of the most debated and controversial topics in the study of the late stages of stellar evolution. Aims: M 2-9 is an outstanding representative of extreme aspherical flows. It presents unique features such as a pair of high-velocity dusty polar blobs and a mirror-symmetric rotatingCorradi, R. L. M. et al.
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52011 -
T Tauri candidates and accretion rates using IPHAS: method and application to IC 1396The Isaac Newton Telescope (INT) Photometric H-Alpha Survey (IPHAS) is a 1800 deg2 survey of the Northern Galactic Plane, reaching down to r'˜ 21. We demonstrate how the survey can be used to (1) reliably select classical T Tauri star candidates and (2) constrain the mass accretion rates with an estimated relative uncertainty of 0.6 dex. IPHAS is aBarentsen, Geert et al.
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72011 -
The Search for Symbiotic Stars in the Iphas SurveyWe have started a project to search for symbiotic stars using the data from IPHAS, the Hα survey of the Northern Galactic plane. Candidates are selected from the IPHAS photometric catalogue based on their colors, combined with the information in the near-infrared from 2MASS. So far, follow-up spectroscopy allowed us to discover 14 new symbioticCorradi, R. L. M.
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02012 -
The Illumination and Growth of CRL 2688: An Analysis of New and Archival Hubble Space Telescope ObservationsWe present four-color images of CRL 2688 obtained in 2009 using the Wide-Field Camera 3 on Hubble Space Telescope. The F606W image is compared with archival images in very similar filters to monitor the proper motions of nebular structure. We find that the bright N-S lobes have expanded uniformly by 2.5% and that the ensemble of rings hasBalick, Bruce et al.
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22012 -
The orbital period of V458 Vulpeculae, a post-double common-envelope novaWe present time-resolved optical spectroscopy of V458 Vulpeculae (Nova Vul 2007 No. 1) spread over a period of 15 months starting 301d after its discovery. Our data reveal radial-velocity variations in the HeII λ5412 and HeII λ4686 emission lines. A period analysis of the radial-velocity curves resulted in a period of 98.09647 +/- 0.00025min (0Rodríguez-Gil, P. et al.
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92010 -
The ongoing outburst of the new symbiotic star IPHASJ190832.31+051226.6Aims: Eleven new symbiotic stars have recently been discovered with IPHAS, the INT Hα survey of the Northern Galactic plane. The star IPHAS J190832.31+051226.6 was proposed as an additional candidate on the basis of the existing spectrum. Here, we investigate the nature of this source by means of additional observations. Methods: Photometric dataCorradi, R. L. M. et al.
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