A dataset provided by the European Space Agency

Name: X-ray emission from brown dwarfs: A sequence of temperatures and ages
Published: 2003-06-06T00:00:00Z

Proposal ID	000274
Title	X-ray emission from brown dwarfs: A sequence of temperatures and ages
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0002740101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0002740301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0002740501 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0002740601
DOI	https://doi.org/10.5270/esa-q53a4dj
Principal Investigator, PI	Dr Ralph Neuhaeuser
Abstract	We propose to observe several brown dwarfs. Two such sub-stellar objects weredetected as X-ray sources for the first time recently with ROSAT. It is notknown, how brown dwarfs emit X-rays, possibly as coronal emission like verylate-type stars. In that case, we should expect a correlation of brown dwarfX-ray emission with spectral type, ie. temperature, and also with age, ie.bolometric luminosity. After the deuterium burning phase, central temperatureand, hence, temperature gradient will decrease. Hence, convection and X-rayemission may cease. Our targets, 2 fields with one brown dwarf each and onefield with several sub-stellar objects, are selected to probe a range in age andtemperature, to study cooling time-scale and internal structure of brown dwarfs.
Publications	On the origin of NeII 12.81 mum emission from pre-main sequence stars: Disks, jets, and accretion \|Gudel, M., Lahuis, F., et al. \| A&A \| 519-113 \| 2010 \| 2010A&A...519A.113G \| http://ui.adsabs.harvard.edu/#abs/2010A&A...519A.113G The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue \|Watson, M. G., Schroder, A. C., et al. \| A&A \| 493-339 \| 2009 \| 2009A&A...493..339W \| http://ui.adsabs.harvard.edu/#abs/2009A&A...493..339W The x-ray luminous galaxy cluster population at 0.9 < z &lsim; 1.6 as revealed by the XMM-Newton Distant Cluster Project \|Fassbender, R., Bohringer, H., et al. \| NJPh \| 13-125014 \| 2011 \| 2011NJPh...13l5014F \| http://ui.adsabs.harvard.edu/#abs/2011NJPh...13l5014F Statistical evaluation of the flux cross-calibration of the XMM-Newton EPIC cameras \|Mateos, S., Saxton, R. D., et al. \| A&A \| 496-879 \| 2009 \| 2009A&A...496..879M \| http://ui.adsabs.harvard.edu/#abs/2009A&A...496..879M The ultracool dwarf DENIS-P J104814.7-395606. Chromospheres and coronae at the low-mass end of the main-sequence \|Stelzer, B., Alcala, J., et al. \| A&A \| 537-94 \| 2012 \| 2012A&A...537A..94S \| http://ui.adsabs.harvard.edu/#abs/2012A&A...537A..94S The XMM Cluster Survey: optical analysis methodology and the first data release \|Mehrtens, Nicola, Romer, A. Kathy, et al. \| MNRAS \| 423-1024 \| 2012 \| 2012MNRAS.423.1024M \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.1024M The XMM-Newton EPIC background: Production of background maps and event files \|Read, A. M., Ponman, T. J., \| A&A \| 409-395 \| 2003 \| 2003A&A...409..395R \| http://ui.adsabs.harvard.edu/#abs/2003A&A...409..395R XMM-Newton probes the stellar population in Chamaeleon I South \|Stelzer, B., Micela, G., \| A&A \| 423-1029 \| 2004 \| 2004A&A...423.1029S \| http://ui.adsabs.harvard.edu/#abs/2004A&A...423.1029S The XMM-Newton EPIC background and the production of background blank sky event files \|Carter, J. A., Read, A. M., \| A&A \| 464-1155 \| 2007 \| 2007A&A...464.1155C \| http://ui.adsabs.harvard.edu/#abs/2007A&A...464.1155C Identifying XMM-Newton observations affected by solar wind charge exchange. Part I \|Carter, J. A., Sembay, S., \| A&A \| 489-837 \| 2008 \| 2008A&A...489..837C \| http://ui.adsabs.harvard.edu/#abs/2008A&A...489..837C An All-Sky Atlas of Radio/X-ray Associations \|Flesch, E., \| PASA \| 27-283 \| 2010 \| 2010PASA...27..283F \| http://ui.adsabs.harvard.edu/#abs/2010PASA...27..283F Constraints on sterile neutrinos as dark matter candidates from the diffuse X-ray background \|Boyarsky, A., Neronov, A., et al. \| MNRAS \| 370-213 \| 2006 \| 2006MNRAS.370..213B \| http://ui.adsabs.harvard.edu/#abs/2006MNRAS.370..213B The XMM Cluster Survey: X-ray analysis methodology \|Lloyd-Davies, E. J., Romer, A. Kathy, et al. \| MNRAS \| 418-14 \| 2011 \| 2011MNRAS.418...14L \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.418...14L Exospheric solar wind charge exchange as seen by XMM-Newton \|Carter, J. A., Semba, S., \| AN \| 333-313 \| 2012 \| 2012AN....333..313C \| http://ui.adsabs.harvard.edu/#abs/2012AN....333..313C The cosmological analysis of X-ray cluster surveys - II. Application of the CR-HR method to the XMM archive \|Clerc, N., Sadibekova, T., et al. \| MNRAS \| 423-3561 \| 2012 \| 2012MNRAS.423.3561C \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.3561C Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog \|Lin, Dacheng, Webb, Natalie A., \| ApJ \| 756-27 \| 2012 \| 2012ApJ...756...27L \| http://ui.adsabs.harvard.edu/#abs/2012ApJ...756...27L An XMM-Newton Survey of the Soft X-Ray Background. II. An All-Sky Catalog of Diffuse O VII and O VIII Emission Intensities \|Henley, David B., Shelton, Robin L., \| ApJS \| 202-14 \| 2012 \| 2012ApJS..202...14H \| http://ui.adsabs.harvard.edu/#abs/2012ApJS..202...14H The 2-8 keV cosmic X-ray background spectrum as observed with XMM-Newton \|De Luca, A., Molendi, S., \| A&A \| 419-837 \| 2004 \| 2004A&A...419..837D \| http://ui.adsabs.harvard.edu/#abs/2004A&A...419..837D Transitional Disks and Their Origins: An Infrared Spectroscopic Survey of Orion A \|Kim, K. H., Watson, Dan M., et al. \| ApJ \| 769-149 \| 2013 \| 2013ApJ...769..149K \| http://ui.adsabs.harvard.edu/#abs/2013ApJ...769..149K Automatic Classification of Time-variable X-Ray Sources \|Lo, Kitty K., Farrell, Sean, et al. \| ApJ \| 786-20 \| 2014 \| 2014ApJ...786...20L \| http://ui.adsabs.harvard.edu/#abs/2014ApJ...786...20L The diversity of quasars unified by accretion and orientation \|Shen, Yue, Ho, Luis C., \| Natur \| 513-210 \| 2014 \| 2014Natur.513..210S \| http://ui.adsabs.harvard.edu/#abs/2014Natur.513..210S Observations of Herbig Ae/Be stars with Herschel/PACS. The atomic and molecular contents of their protoplanetary discs \|Meeus, G., Montesinos, B., et al. \| A&A \| 544-78 \| 2012 \| 2012A&A...544A..78M \| http://ui.adsabs.harvard.edu/#abs/2012A&A...544A..78M Sunyaev-Zel.dovich effect or not? Detecting the main foreground effect of most galaxy clusters \|Xiao, Weike, Chen, Chen, et al. \| MNRAS \| 432-41 \| 2013 \| 2013MNRAS.432L..41X \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.432L..41X A survey of stellar X-ray flares from the XMM-Newton serendipitous source catalogue: HIPPARCOS-Tycho cool stars \|Pye, J. P., Rosen, S., et al. \| A&A \| 581-28 \| 2015 \| 2015A&A...581A..28P \| http://ui.adsabs.harvard.edu/#abs/2015A&A...581A..28P The Interaction of the Fermi Bubbles with the Milky Way.s Hot Gas Halo \|Miller, Matthew J., Bregman, Joel N., \| ApJ \| 829-9 \| 2016 \| 2016ApJ...829....9M \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...829....9M SPIDERS: the spectroscopic follow-up of X-ray selected clusters of galaxies in SDSS-IV \|Clerc, N., Merloni, A., et al. \| MNRAS \| 463-4490 \| 2016 \| 2016MNRAS.463.4490C \| http://ui.adsabs.harvard.edu/#abs/2016MNRAS.463.4490C The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch, Eric W., \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F Towards a complete stellar mass function of the Hyades. I. Pan-STARRS1 optical observations of the low-mass stellar content \|Goldman, B., Roser, S., et al. \| A&A \| 559-43 \| 2013 \| 2013A&A...559A..43G \| http://ui.adsabs.harvard.edu/#abs/2013A&A...559A..43G Studying Cosmic Evolution with the XMM-Newton Distant Cluster Project: X-ray Luminous Galaxy Clusters at z>virgul1 and their Galaxy Populations \|Fassbender, Rene, \| PhDT \| 0-116 \| 2008 \| 2008PhDT.......116F \| http://ui.adsabs.harvard.edu/#abs/2008PhDT.......116F High energy irradiated protoplanetary disks : the X-rays and FUV role in thermo-chemical modeling \|Aresu, Giambattista, \| PhDT \| 0-81 \| 2012 \| 2012PhDT........81A \| http://ui.adsabs.harvard.edu/#abs/2012PhDT........81A Anisotropy of the galaxy cluster X-ray luminosity-temperature relation \|Migkas, Konstantinos, Reiprich, Thomas H., \| A&A \| 611-50 \| 2018 \| 2018A&A...611A..50M \| http://ui.adsabs.harvard.edu/#abs/2018A&A...611A..50M Imaging Plasma Density Structures in the Soft X-Rays Generated by Solar Wind Charge Exchange with Neutrals \|Sibeck, David G., Allen, R., et al. \| SSRv \| 214-79 \| 2018 \| 2018SSRv..214...79S \| http://ui.adsabs.harvard.edu/#abs/2018SSRv..214...79S The XMM Cluster Survey: Present status and latest results \|Viana, P. T. P., Mehrtens, N., et al. \| AN \| 334-462 \| 2013 \| 2013AN....334..462V \| http://ui.adsabs.harvard.edu/#abs/2013AN....334..462V The Spectrum of the Universe \|Hill, Ryley, Masui, Kiyoshi W., \| ApSpe \| 72-663 \| 2018 \| 2018ApSpe..72..663H \| http://ui.adsabs.harvard.edu/#abs/2018ApSpe..72..663H The Massive and Distant Clusters of WISE Survey. I. Survey Overview and a Catalog of >2000 Galaxy Clusters at z virgul= 1 \|Gonzalez, Anthony H., Gettings, Daniel P., et al. \| ApJS \| 240-33 \| 2019 \| 2019ApJS..240...33G \| http://ui.adsabs.harvard.edu/#abs/2019ApJS..240...33G Consistent dust and gas models for protoplanetary disks. IV. A panchromatic view of protoplanetary disks \|Dionatos, O., Woitke, P., et al. \| A&A \| 625-66 \| 2019 \| 2019A&A...625A..66D \| http://ui.adsabs.harvard.edu/#abs/2019A&A...625A..66D Testing emergent gravity on galaxy cluster scales \|Tamosiunas, Andrius, Bacon, David, et al. \| JCAP \| 5-53 \| 2019 \| 2019JCAP...05..053T \| http://ui.adsabs.harvard.edu/#abs/2019JCAP...05..053T Chandra Follow-up of the SDSS DR8 Redmapper Catalog Using the MATCha Pipeline \|Hollowood, Devon L., Jeltema, Tesla, et al. \| ApJS \| 244-22 \| 2019 \| 2019ApJS..244...22H \| http://ui.adsabs.harvard.edu/#abs/2019ApJS..244...22H Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters \|Palmese, A., Annis, J., et al. \| MNRAS \| 493-4591 \| 2020 \| 2020MNRAS.493.4591P \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.493.4591P X-ray properties of the X-CLASS-redMaPPer galaxy cluster sample: the luminosity-temperature relation \|Molham, Mona, Clerc, Nicolas, et al. \| MNRAS \| 494-161 \| 2020 \| 2020MNRAS.494..161M \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.494..161M Multiwavelength classification of X-ray selected galaxy cluster candidates using convolutional neural networks \|Kosiba, Matej, Lieu, Maggie, et al. \| MNRAS \| 496-4141 \| 2020 \| 2020MNRAS.496.4141K \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.496.4141K SPIDERS: overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release \|Clerc, N., Kirkpatrick, C. C., et al. \| MNRAS \| 497-3976 \| 2020 \| 2020MNRAS.497.3976C \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.497.3976C An X-Ray- and SZ-bright Diffuse Source toward M31: A Local Hot Bridge \|Qu, Zhijie, Huang, Rui, et al. \| ApJ \| 907-14 \| 2021 \| 2021ApJ...907...14Q \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...907...14Q Decaying fermionic warm dark matter and XENON1T electronic recoil excess \|Dutta, Koushik, Ghosh, Avirup, et al. \| PDU \| 33-100855 \| 2021 \| 2021PDU....3300855D \| http://ui.adsabs.harvard.edu/#abs/2021PDU....3300855D Classification of 4XMM-DR9 sources by machine learning \|Zhang, Yanxia, Zhao, Yongheng, \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z The Solar Cycle Temporal Variation of the Solar Wind Charge Exchange X-Ray Lines \|Qu, Zhijie, Koutroumpa, Dimitra, et al. \| ApJ \| 930-21 \| 2022 \| 2022ApJ...930...21Q \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...930...21Q A Statistical Study of Soft X-Ray Flares on Solar-type Stars \|Zhao, Z. H., Hua, Z. Q., et al. \| ApJ \| 961-130 \| 2024 \| 2024ApJ...961..130Z \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...961..130Z The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII, O VIII, and Fe L-shell Transitions \|Pan, Zeyang, Qu, Zhijie, et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez, Antonio C., \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R Robust constraints on feebly interacting particles using XMM-Newton \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque, Pedro, Balaji, Shyam, \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2001-09-02T04:28:59Z/2002-04-09T19:07:20Z
Version	17.56_20190403_1200
Mission Description	The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact	https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published	2003-06-06T00:00:00Z
Keywords	"late type stars", "xray sources", "bolometric luminosity", "x ray emission", "internal structure", "cooling time scale", "central temperature", "spectral type", "deuterium burning phase", "sub stellar objects", "coronal emission", "temperature gradient", "xray emission", "ROSAT", "brown dwarf"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Ralph Neuhaeuser, 2003, 'X-ray emission from brown dwarfs: A sequence of temperatures and ages', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-q53a4dj