VISTA Variables in the Via Lactea (VVV): The public ESO near-IR variability survey of the Milky Way

Minniti, D.; Lucas, P. W.; Emerson, J. P.; Saito, R. K.; Hempel, M.; Pietrukowicz, P.; Ahumada, A. V.; Alonso, M. V.; Alonso-García, J.; Arias, J. I.; Bandyopadhyay, Reba M.; Barbá, R. H.; Barbuy, B.; Bedin, L. R.; Bica, E.; Borissova, J.; Bronfman, L.; Carraro, G.; Catelan, M.; Clariá, J. J.; Cross, N. J. G.; Grijs, Richard de; Dékány, I.; Drew, J. E.; Fariña, C.; Feinstein, C.; Lajús, E. Fernández; Gamen, R.; Geisler, Doug; Gieren, W.; Goldman, B.; Gonzalez, O. A.; Günthardt, G.; Gurovich, S.; Hambly, N. C.; Irwin, M. J.; Ivanov, V. D.; Jordán, Andrés; Kerins, E.; Kinemuchi, Karen; Kurtev, R.; López-Corredoira, M.; Maccarone, Tom; Masetti, N.; Merlo, D. C.; Messineo, M.; Mirabel, I. F.; Monaco, L.; Morelli, L.; Padilla, Nelson; Palma, Tali; Parisi, M. C.; Pignata, G.; Rejkuba, M.; Roman-Lopes, Alexandre; Sale, S. E.; Schreiber, M. R.; Schröder, A. C.; Smith, M.; Sodré, L.; Soto, M.; Tamura, Motohide; Tappert, C.; Thompson, M. A.; Toledo, I.; Zoccali, M.; Pietrzyński, G.

doi:10.1016/j.newast.2009.12.002

Cited by 911 publications

(833 citation statements)

References 92 publications

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“…Finally, the telluric correction was applied using the fire_xtellcor_ld, a clone of the xtellcor program from SpexTool (Cushing et al 2004;Vacca et al 2003) 2.3 VISTA/VIRCAM The VVV survey (Minniti et al 2010;Saito et al 2012;Hempel et al 2014) is one of the six ESO public surveys carried out with the 4.1m Visual and Infrared Survey Telescope for Astronomy (VISTA) telescope and VIR-CAM camera at cerro Paranal Chile (Dalton et al 2006;Emerson & Sutherland 2010). It has sixteen 2048x2048 pixels chips with a pixel scale of 0.34 ′′ .…”

Section: Magellan/firementioning

confidence: 99%

Spectrophotometric characterization of high proper motion sources fromWISE

Beamín

Ivanov

Minniti

et al. 2015

Mon. Not. R. Astron. Soc.

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The census of the solar neighborhood is almost complete for stars and becoming more complete in the brown dwarf regime. Spectroscopic, photometric and kinematic characterization of nearby objects helps us to understand the local mass function, the binary fraction, and provides new targets for sensitive planet searches. We aim to derive spectral types and spectro-photometric distances of a sample of new high proper motion sources found with the WISE satellite, and obtain parallaxes for those objects that fall within the area observed by the Vista Variables in the Vía Láctea survey (VVV). We used low resolution spectroscopy and template fitting to derive spectral types, multiwavelength photometry to characterize the companion candidates and obtain photometric distances. Multi-epoch imaging from the VVV survey was used to measure the parallaxes and proper motions for three sources. We confirm a new T2 brown dwarf within ∼15 pc. We derived optical spectral types for twenty four sources, mostly M dwarfs within 50 pc. We addressed the wide binary nature of sixteen objects found by the WISE mission and previously known high proper motion sources. Six of these are probably members of wide binaries, two of those are new, and present evidence against the physical binary nature of two candidate binary stars found in the literature, and eight that we selected as possible binary systems. We discuss a likely microlensing event produced by a nearby low mass star and a galaxy, that is to occur in the following five years.

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Section: Magellan/firementioning

confidence: 99%

Spectrophotometric characterization of high proper motion sources fromWISE

Beamín

Ivanov

Minniti

et al. 2015

Mon. Not. R. Astron. Soc.

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“…While the prompt emission flare from the tidal disruption of a planet cannot be detected in the optical band due to Galactic dust extinction, the unabsorbed flux in the K-band is ∼ 0.2 mJy at the distance of 10 kpc, potentially detectable with infrared sky surveys, such as UKIRT Infrared Deep Sky Survey (UKIDSS: Hewett et al 2006;Lawrence et al 2007) and VISTA Variables in the Via Lactea (VVV: Minniti et al 2010). If αN pl 1, the expected event rate ∼ 5(αN pl ) events yr −1 for the entire Galactic plane (see § 1), is too small for detectability by current transient surveys.…”

Section: Prospects For Future Observationsmentioning

confidence: 99%

Optical–infrared flares and radio afterglows by Jovian planets inspiraling into their host stars

Yamazaki

Hayasaki

Loeb

2016

Mon. Not. R. Astron. Soc.

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When a planet inspirals into its host star, it releases gravitational energy which is converted into an expanding bubble of hot plasma. We study the radiation from the bubble and show that it includes prompt optical-infrared emission and a subsequent radio afterglow. The prompt emission from M31 and Large Magellanic Cloud is detectable by optical-near infrared transient surveys with a large field of view. The subsequent radio afterglows are detectable for 10 3−4 years. The event rate depends on uncertain parameters in the formation and dynamics of giant planets. Future observation of the rate will constrain related theoretical models. If the event rate is high ( a few events per year), the circumstellar disk must typically be massive as suggested by recent numerical simulations.

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“…For a more detailed description of the survey goals and observing strategy we refer to Minniti et al [5] and the survey web page: http://vvvsurvey.org.…”

Section: Vvv Survey Main Parametersmentioning

confidence: 99%

VVV: The near-IR Milky Way bulge and plane survey

Rejkuba¹,

Gonzalez²,

Toledo

et al. 2012

EPJ Web of Conferences

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Abstract. The ESO public survey "VISTA Variables in the Via Lactea" (VVV) started mapping the inner disk and bulge of our Galaxy with the VISTA 4m telescope in the near-IR in 2010. The planned survey area of 520 deg 2 is observed in the Z, Y, J, H and Ks filters, and in addition more than 100 epochs of repeated imaging in Ks will be collected over ∼5 years. The final products will be a deep near-IR atlas in five passbands, and catalogue of more than a million variable sources. This public survey will provide data available to the whole community and therefore will enable further studies of the history of the Milky Way, its star cluster evolution, and the population census of the Galactic Bulge and center, as well as the investigations of the star formation regions in the disk.

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VISTA Variables in the Via Lactea (VVV): The public ESO near-IR variability survey of the Milky Way

Cited by 911 publications

References 92 publications

Spectrophotometric characterization of high proper motion sources fromWISE

Spectrophotometric characterization of high proper motion sources fromWISE

Optical–infrared flares and radio afterglows by Jovian planets inspiraling into their host stars

VVV: The near-IR Milky Way bulge and plane survey

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