J/AJ/163/18ivo://CDS.VizieR/J/AJ/163/18doi:10.26093/cds/vizier.51630018CDSFerguson P.S.Shipp N.Drlica-Wagner A.Li T.S.Cerny W.Tavangar K.,Pace A.B.Marshall J.L.Riley A.H.Adamow M.Carlin J.L.Choi Y.,Erkal D.James D.J.Koposov S.E.Kuropatkin N.Martinez-Vazquez C.E.,Mau S.Mutlu-Pakdil B.Olsen K.A.G.Sakowska J.D.Stringfellow G.S.,Yanny B.2024-06-10T06:17:00Z2022-04-12T06:45:09ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frmilky-way-galaxyvariable-starsproper-motionsinfrared-photometryvisible-astronomybroad-band-photometryWe perform a detailed photometric and astrometric analysis of stars in the Jet stream using data from the first data release of the DECam Local Volume Exploration Survey DR1 and Gaia EDR3. We discover that the stream extends over ~29{deg} on the sky (increasing the known length by 18{deg}), which is comparable to the kinematically cold Phoenix, ATLAS, and GD-1 streams. Using blue horizontal branch stars, we resolve a distance gradient along the Jet stream of 0.2kpc/deg, with distances ranging from D{sun}~27-34kpc. We use natural splines to simultaneously fit the stream track, width, and intensity to quantitatively characterize density variations in the Jet stream, including a large gap, and identify substructure off the main track of the stream. Furthermore, we report the first measurement of the proper motion of the Jet stream and find that it is well aligned with the stream track, suggesting the stream has likely not been significantly perturbed perpendicular to the line of sight. Finally, we fit the stream with a dynamical model and find that it is on a retrograde orbit, and is well fit by a gravitational potential including the Milky Way and Large Magellanic Cloud. These results indicate the Jet stream is an excellent candidate for future studies with deeper photometry, astrometry, and spectroscopy to study the potential of the Milky Way and probe perturbations from baryonic and dark matter substructure.2022AJ....163...18Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/163/18CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/337 : Gaia DR1 (Gaia Collaboration, 2016)I/350 : Gaia EDR3 (Gaia Collaboration, 2020)II/371 : The Dark Energy Survey (DES): Data Release 2 (Abott+, 2021)J/ApJ/757/83 : The Blanco Cosmology Survey (BCS) (Desai+, 2012)J/ApJ/866/22 : Spectroscopic analysis of Tuc III stream (Li+, 2018)J/ApJ/867/105 : ATLAS all-sky stellar ref. cat., ATLAS-REFCAT2 (Tonry+, 2018)J/MNRAS/486/2995 : GD-1 stellar stream (Malhan+, 2019)J/ApJ/875/77 : Proper motions of MW satellites with Gaia & DES (Pace+, 2019)J/ApJ/885/3 : Membership in 12 stellar streams from DES (Shipp+, 2019)J/MNRAS/484/2832 : Proper motions Milky Way globular clusters (Vasiliev, 2019)J/AJ/159/287 : Stellar parameters Ophiuchus Stream with MMT (Caldwell+, 2020)J/ApJ/893/47 : Milky Way satellite census. I. DES & PS1 (Drlica-Wagner+, 2020)J/AJ/160/181 : Chemical abundances in red giants with Magellan (Ji+, 2020)J/A+A/649/A3 : Gaia Early Data Release 3 photometric passbands (Riello+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/163/18https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/163/18http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/163/18https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/163/18https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/163/18http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/163/18GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/163/18/tablea1 (Probable stream member stars with membership probability greater than 0.1)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/163/18/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/163/18/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/163/18/tablea1?GETtext/xml+votable180.050000true147.32084599180075-10.9043556273080390.0055555555555555565/10038 10104-10105 6/26786-26787 40064-40065 40067 40070-40071 40082-40083 40086 40088-40089 40092-40093 40136-40137 40141 40143 40157-40159 40330-40331 40334-40335 40346-40347 40350 40357 40368-40369 40372-40373 40434-40435 40438-40439 40445https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/163/18?format=asciiOpticalInfrareddefaultJ/AJ/163/18/tablea1Probable stream member stars with membership probability greater than 0.1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDELVEDELVE DR1 IDs; Drlica-Wagner+, 2021ApJS..256....2Dmeta.id;meta.mainGaiaGaia EDR3 IDsmeta.id.crossRAICRS[129/149] Right Ascension (ICRS at Epoch 2015.5)degpos.eq.ra;meta.mainDEICRS[-34.8/-10.3] Declination (ICRS at Epoch 2015.5)degpos.eq.dec;meta.maing0mag[17/19.2] g-band reddening corrected PSF photometry, DELVE DR1magphot.mag;em.opt.Vfloatr0mag[16.4/18.7] r-band reddening corrected PSF photometry, DELVE DR1magphot.mag;em.opt.RfloatpmRA[-1.67/0.23] Gaia EDR3 proper motion in RAmas/yrpos.pm;pos.eq.rafloate_pmRA[0.06/0.3] Uncertainty in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDE[-2.2/-0.62] Gaia EDR3 proper motion in DEmas/yrpos.pm;pos.eq.decfloate_pmDE[0.05/0.4] Uncertainty in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatDist[26.8/42] Distances derived from Equation 3 (1)kpcpos.distancefloatpi[0.11/1] probability that a star is a member of the Jet streammeta.code.member;stat.probabilityfloate_pi[0/0.3] Uncertainty in pistat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decindexed